Home / 91,710.27-126,561.51-53,468.78

Finding the Fourth Proportional to 91,710.27, 126,561.51 and 53,468.78

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Solution

The fourth proportional to 91,710.27, 126,561.51 and 53,468.78 is: 73,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,710.27 : 126,561.51 = 53,468.78 : x
  2. Step 2: Convert to fraction form
    91,710.27/126,561.51 = 53,468.78/x
  3. Step 3: Cross multiply
    91,710.27x = 126,561.51 × 53,468.78
  4. Step 4: Simplify right side
    91,710.27x = 6,767,088,901.85
  5. Step 5: Solve for x
    x = 6,767,088,901.85/91,710.27
  6. Step 6: Final answer
    x = 73,787.69

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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.