Home / 56,212.12-77,569.68-31,060

Finding the Fourth Proportional to 56,212.12, 77,569.68 and 31,060

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Solution

The fourth proportional to 56,212.12, 77,569.68 and 31,060 is: 42,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,212.12 : 77,569.68 = 31,060 : x
  2. Step 2: Convert to fraction form
    56,212.12/77,569.68 = 31,060/x
  3. Step 3: Cross multiply
    56,212.12x = 77,569.68 × 31,060
  4. Step 4: Simplify right side
    56,212.12x = 2,409,314,260.80
  5. Step 5: Solve for x
    x = 2,409,314,260.80/56,212.12
  6. Step 6: Final answer
    x = 42,861.12

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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.