Home / 99,695.07-137,575.38-54,983.07

Finding the Fourth Proportional to 99,695.07, 137,575.38 and 54,983.07

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Solution

The fourth proportional to 99,695.07, 137,575.38 and 54,983.07 is: 75,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.07 : 137,575.38 = 54,983.07 : x
  2. Step 2: Convert to fraction form
    99,695.07/137,575.38 = 54,983.07/x
  3. Step 3: Cross multiply
    99,695.07x = 137,575.38 × 54,983.07
  4. Step 4: Simplify right side
    99,695.07x = 7,564,316,748.82
  5. Step 5: Solve for x
    x = 7,564,316,748.82/99,695.07
  6. Step 6: Final answer
    x = 75,874.53

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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.