Home / 57,177.16-78,931.86-38,088.70

Finding the Fourth Proportional to 57,177.16, 78,931.86 and 38,088.70

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Solution

The fourth proportional to 57,177.16, 78,931.86 and 38,088.70 is: 52,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,177.16 : 78,931.86 = 38,088.70 : x
  2. Step 2: Convert to fraction form
    57,177.16/78,931.86 = 38,088.70/x
  3. Step 3: Cross multiply
    57,177.16x = 78,931.86 × 38,088.70
  4. Step 4: Simplify right side
    57,177.16x = 3,006,411,935.98
  5. Step 5: Solve for x
    x = 3,006,411,935.98/57,177.16
  6. Step 6: Final answer
    x = 52,580.64

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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.