Home / 57,088.54-78,780.93-31,246.96

Finding the Fourth Proportional to 57,088.54, 78,780.93 and 31,246.96

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Solution

The fourth proportional to 57,088.54, 78,780.93 and 31,246.96 is: 43,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,088.54 : 78,780.93 = 31,246.96 : x
  2. Step 2: Convert to fraction form
    57,088.54/78,780.93 = 31,246.96/x
  3. Step 3: Cross multiply
    57,088.54x = 78,780.93 × 31,246.96
  4. Step 4: Simplify right side
    57,088.54x = 2,461,664,568.47
  5. Step 5: Solve for x
    x = 2,461,664,568.47/57,088.54
  6. Step 6: Final answer
    x = 43,120.12

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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.