Home / 99,674.13-137,545.29-56,652.51

Finding the Fourth Proportional to 99,674.13, 137,545.29 and 56,652.51

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Solution

The fourth proportional to 99,674.13, 137,545.29 and 56,652.51 is: 78,177.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,674.13 : 137,545.29 = 56,652.51 : x
  2. Step 2: Convert to fraction form
    99,674.13/137,545.29 = 56,652.51/x
  3. Step 3: Cross multiply
    99,674.13x = 137,545.29 × 56,652.51
  4. Step 4: Simplify right side
    99,674.13x = 7,792,285,917.18
  5. Step 5: Solve for x
    x = 7,792,285,917.18/99,674.13
  6. Step 6: Final answer
    x = 78,177.62

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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.