Home / 56,366.40-77,785.60-31,215.88

Finding the Fourth Proportional to 56,366.40, 77,785.60 and 31,215.88

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Solution

The fourth proportional to 56,366.40, 77,785.60 and 31,215.88 is: 43,077.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,366.40 : 77,785.60 = 31,215.88 : x
  2. Step 2: Convert to fraction form
    56,366.40/77,785.60 = 31,215.88/x
  3. Step 3: Cross multiply
    56,366.40x = 77,785.60 × 31,215.88
  4. Step 4: Simplify right side
    56,366.40x = 2,428,145,955.33
  5. Step 5: Solve for x
    x = 2,428,145,955.33/56,366.40
  6. Step 6: Final answer
    x = 43,077.90

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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.