Home / 57,065.36-78,753.84-31,915.04

Finding the Fourth Proportional to 57,065.36, 78,753.84 and 31,915.04

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Solution

The fourth proportional to 57,065.36, 78,753.84 and 31,915.04 is: 44,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.36 : 78,753.84 = 31,915.04 : x
  2. Step 2: Convert to fraction form
    57,065.36/78,753.84 = 31,915.04/x
  3. Step 3: Cross multiply
    57,065.36x = 78,753.84 × 31,915.04
  4. Step 4: Simplify right side
    57,065.36x = 2,513,431,953.75
  5. Step 5: Solve for x
    x = 2,513,431,953.75/57,065.36
  6. Step 6: Final answer
    x = 44,044.79

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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.