Home / 56,423.07-77,863.83-31,272.57

Finding the Fourth Proportional to 56,423.07, 77,863.83 and 31,272.57

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Solution

The fourth proportional to 56,423.07, 77,863.83 and 31,272.57 is: 43,156.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,423.07 : 77,863.83 = 31,272.57 : x
  2. Step 2: Convert to fraction form
    56,423.07/77,863.83 = 31,272.57/x
  3. Step 3: Cross multiply
    56,423.07x = 77,863.83 × 31,272.57
  4. Step 4: Simplify right side
    56,423.07x = 2,435,002,074.14
  5. Step 5: Solve for x
    x = 2,435,002,074.14/56,423.07
  6. Step 6: Final answer
    x = 43,156.14

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1.5x scale

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.