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Finding the Fourth Proportional to 99,341.52, 137,092.28 and 56,899.16

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Solution

The fourth proportional to 99,341.52, 137,092.28 and 56,899.16 is: 78,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,341.52 : 137,092.28 = 56,899.16 : x
  2. Step 2: Convert to fraction form
    99,341.52/137,092.28 = 56,899.16/x
  3. Step 3: Cross multiply
    99,341.52x = 137,092.28 × 56,899.16
  4. Step 4: Simplify right side
    99,341.52x = 7,800,435,574.48
  5. Step 5: Solve for x
    x = 7,800,435,574.48/99,341.52
  6. Step 6: Final answer
    x = 78,521.40

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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.