Home / 56,916.98-78,545.70-31,422.89

Finding the Fourth Proportional to 56,916.98, 78,545.70 and 31,422.89

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Solution

The fourth proportional to 56,916.98, 78,545.70 and 31,422.89 is: 43,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,916.98 : 78,545.70 = 31,422.89 : x
  2. Step 2: Convert to fraction form
    56,916.98/78,545.70 = 31,422.89/x
  3. Step 3: Cross multiply
    56,916.98x = 78,545.70 × 31,422.89
  4. Step 4: Simplify right side
    56,916.98x = 2,468,132,645.62
  5. Step 5: Solve for x
    x = 2,468,132,645.62/56,916.98
  6. Step 6: Final answer
    x = 43,363.73

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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.