Home / 56,689.60-78,236.76-31,201.06

Finding the Fourth Proportional to 56,689.60, 78,236.76 and 31,201.06

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Solution

The fourth proportional to 56,689.60, 78,236.76 and 31,201.06 is: 43,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.60 : 78,236.76 = 31,201.06 : x
  2. Step 2: Convert to fraction form
    56,689.60/78,236.76 = 31,201.06/x
  3. Step 3: Cross multiply
    56,689.60x = 78,236.76 × 31,201.06
  4. Step 4: Simplify right side
    56,689.60x = 2,441,069,842.97
  5. Step 5: Solve for x
    x = 2,441,069,842.97/56,689.60
  6. Step 6: Final answer
    x = 43,060.28

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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.