Home / 56,911.13-78,545.28-31,762.25

Finding the Fourth Proportional to 56,911.13, 78,545.28 and 31,762.25

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Solution

The fourth proportional to 56,911.13, 78,545.28 and 31,762.25 is: 43,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.13 : 78,545.28 = 31,762.25 : x
  2. Step 2: Convert to fraction form
    56,911.13/78,545.28 = 31,762.25/x
  3. Step 3: Cross multiply
    56,911.13x = 78,545.28 × 31,762.25
  4. Step 4: Simplify right side
    56,911.13x = 2,494,774,819.68
  5. Step 5: Solve for x
    x = 2,494,774,819.68/56,911.13
  6. Step 6: Final answer
    x = 43,836.33

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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.