Home / 89,351.13-123,314.40-51,114.20

Finding the Fourth Proportional to 89,351.13, 123,314.40 and 51,114.20

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Solution

The fourth proportional to 89,351.13, 123,314.40 and 51,114.20 is: 70,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,351.13 : 123,314.40 = 51,114.20 : x
  2. Step 2: Convert to fraction form
    89,351.13/123,314.40 = 51,114.20/x
  3. Step 3: Cross multiply
    89,351.13x = 123,314.40 × 51,114.20
  4. Step 4: Simplify right side
    89,351.13x = 6,303,117,212.77
  5. Step 5: Solve for x
    x = 6,303,117,212.77/89,351.13
  6. Step 6: Final answer
    x = 70,543.23

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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.