Home / 74,308.50-102,545.73-40,776.66

Finding the Fourth Proportional to 74,308.50, 102,545.73 and 40,776.66

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Solution

The fourth proportional to 74,308.50, 102,545.73 and 40,776.66 is: 56,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,308.50 : 102,545.73 = 40,776.66 : x
  2. Step 2: Convert to fraction form
    74,308.50/102,545.73 = 40,776.66/x
  3. Step 3: Cross multiply
    74,308.50x = 102,545.73 × 40,776.66
  4. Step 4: Simplify right side
    74,308.50x = 4,181,472,366.66
  5. Step 5: Solve for x
    x = 4,181,472,366.66/74,308.50
  6. Step 6: Final answer
    x = 56,271.79

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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.