Home / 56,358.26-77,776.82-31,207.76

Finding the Fourth Proportional to 56,358.26, 77,776.82 and 31,207.76

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Solution

The fourth proportional to 56,358.26, 77,776.82 and 31,207.76 is: 43,068.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,358.26 : 77,776.82 = 31,207.76 : x
  2. Step 2: Convert to fraction form
    56,358.26/77,776.82 = 31,207.76/x
  3. Step 3: Cross multiply
    56,358.26x = 77,776.82 × 31,207.76
  4. Step 4: Simplify right side
    56,358.26x = 2,427,240,332.12
  5. Step 5: Solve for x
    x = 2,427,240,332.12/56,358.26
  6. Step 6: Final answer
    x = 43,068.05

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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.