Home / 89,215.79-123,117.53-50,987.19

Finding the Fourth Proportional to 89,215.79, 123,117.53 and 50,987.19

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Solution

The fourth proportional to 89,215.79, 123,117.53 and 50,987.19 is: 70,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,215.79 : 123,117.53 = 50,987.19 : x
  2. Step 2: Convert to fraction form
    89,215.79/123,117.53 = 50,987.19/x
  3. Step 3: Cross multiply
    89,215.79x = 123,117.53 × 50,987.19
  4. Step 4: Simplify right side
    89,215.79x = 6,277,417,021.91
  5. Step 5: Solve for x
    x = 6,277,417,021.91/89,215.79
  6. Step 6: Final answer
    x = 70,362.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.