Home / 89,438.12-123,397.66-53,615.06

Finding the Fourth Proportional to 89,438.12, 123,397.66 and 53,615.06

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Solution

The fourth proportional to 89,438.12, 123,397.66 and 53,615.06 is: 73,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,438.12 : 123,397.66 = 53,615.06 : x
  2. Step 2: Convert to fraction form
    89,438.12/123,397.66 = 53,615.06/x
  3. Step 3: Cross multiply
    89,438.12x = 123,397.66 × 53,615.06
  4. Step 4: Simplify right side
    89,438.12x = 6,615,972,944.76
  5. Step 5: Solve for x
    x = 6,615,972,944.76/89,438.12
  6. Step 6: Final answer
    x = 73,972.63

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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.