Home / 56,866.13-78,475.25-31,715.63

Finding the Fourth Proportional to 56,866.13, 78,475.25 and 31,715.63

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Solution

The fourth proportional to 56,866.13, 78,475.25 and 31,715.63 is: 43,767.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,866.13 : 78,475.25 = 31,715.63 : x
  2. Step 2: Convert to fraction form
    56,866.13/78,475.25 = 31,715.63/x
  3. Step 3: Cross multiply
    56,866.13x = 78,475.25 × 31,715.63
  4. Step 4: Simplify right side
    56,866.13x = 2,488,891,680.07
  5. Step 5: Solve for x
    x = 2,488,891,680.07/56,866.13
  6. Step 6: Final answer
    x = 43,767.56

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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.