Home / 55,260.60-76,265.10-31,388.76

Finding the Fourth Proportional to 55,260.60, 76,265.10 and 31,388.76

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Solution

The fourth proportional to 55,260.60, 76,265.10 and 31,388.76 is: 43,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,260.60 : 76,265.10 = 31,388.76 : x
  2. Step 2: Convert to fraction form
    55,260.60/76,265.10 = 31,388.76/x
  3. Step 3: Cross multiply
    55,260.60x = 76,265.10 × 31,388.76
  4. Step 4: Simplify right side
    55,260.60x = 2,393,866,920.28
  5. Step 5: Solve for x
    x = 2,393,866,920.28/55,260.60
  6. Step 6: Final answer
    x = 43,319.60

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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.