Home / 55,155.18-76,115.46-31,283.46

Finding the Fourth Proportional to 55,155.18, 76,115.46 and 31,283.46

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Solution

The fourth proportional to 55,155.18, 76,115.46 and 31,283.46 is: 43,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,155.18 : 76,115.46 = 31,283.46 : x
  2. Step 2: Convert to fraction form
    55,155.18/76,115.46 = 31,283.46/x
  3. Step 3: Cross multiply
    55,155.18x = 76,115.46 × 31,283.46
  4. Step 4: Simplify right side
    55,155.18x = 2,381,154,948.29
  5. Step 5: Solve for x
    x = 2,381,154,948.29/55,155.18
  6. Step 6: Final answer
    x = 43,171.92

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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.