Home / 55,545.70-76,655.10-31,672.12

Finding the Fourth Proportional to 55,545.70, 76,655.10 and 31,672.12

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Solution

The fourth proportional to 55,545.70, 76,655.10 and 31,672.12 is: 43,708.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,545.70 : 76,655.10 = 31,672.12 : x
  2. Step 2: Convert to fraction form
    55,545.70/76,655.10 = 31,672.12/x
  3. Step 3: Cross multiply
    55,545.70x = 76,655.10 × 31,672.12
  4. Step 4: Simplify right side
    55,545.70x = 2,427,829,525.81
  5. Step 5: Solve for x
    x = 2,427,829,525.81/55,545.70
  6. Step 6: Final answer
    x = 43,708.69

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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.