Home / 57,099.27-78,797.13-31,607.40

Finding the Fourth Proportional to 57,099.27, 78,797.13 and 31,607.40

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Solution

The fourth proportional to 57,099.27, 78,797.13 and 31,607.40 is: 43,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,099.27 : 78,797.13 = 31,607.40 : x
  2. Step 2: Convert to fraction form
    57,099.27/78,797.13 = 31,607.40/x
  3. Step 3: Cross multiply
    57,099.27x = 78,797.13 × 31,607.40
  4. Step 4: Simplify right side
    57,099.27x = 2,490,572,406.76
  5. Step 5: Solve for x
    x = 2,490,572,406.76/57,099.27
  6. Step 6: Final answer
    x = 43,618.29

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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.