Home / 99,508.07-137,285.07-56,462.63

Finding the Fourth Proportional to 99,508.07, 137,285.07 and 56,462.63

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Solution

The fourth proportional to 99,508.07, 137,285.07 and 56,462.63 is: 77,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,508.07 : 137,285.07 = 56,462.63 : x
  2. Step 2: Convert to fraction form
    99,508.07/137,285.07 = 56,462.63/x
  3. Step 3: Cross multiply
    99,508.07x = 137,285.07 × 56,462.63
  4. Step 4: Simplify right side
    99,508.07x = 7,751,475,970.78
  5. Step 5: Solve for x
    x = 7,751,475,970.78/99,508.07
  6. Step 6: Final answer
    x = 77,897.97

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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.