Home / 56,423.13-77,863.91-31,272.63

Finding the Fourth Proportional to 56,423.13, 77,863.91 and 31,272.63

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Solution

The fourth proportional to 56,423.13, 77,863.91 and 31,272.63 is: 43,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,423.13 : 77,863.91 = 31,272.63 : x
  2. Step 2: Convert to fraction form
    56,423.13/77,863.91 = 31,272.63/x
  3. Step 3: Cross multiply
    56,423.13x = 77,863.91 × 31,272.63
  4. Step 4: Simplify right side
    56,423.13x = 2,435,009,247.78
  5. Step 5: Solve for x
    x = 2,435,009,247.78/56,423.13
  6. Step 6: Final answer
    x = 43,156.22

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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.