Home / 57,021.95-78,687.11-31,526.83

Finding the Fourth Proportional to 57,021.95, 78,687.11 and 31,526.83

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Solution

The fourth proportional to 57,021.95, 78,687.11 and 31,526.83 is: 43,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.95 : 78,687.11 = 31,526.83 : x
  2. Step 2: Convert to fraction form
    57,021.95/78,687.11 = 31,526.83/x
  3. Step 3: Cross multiply
    57,021.95x = 78,687.11 × 31,526.83
  4. Step 4: Simplify right side
    57,021.95x = 2,480,754,746.73
  5. Step 5: Solve for x
    x = 2,480,754,746.73/57,021.95
  6. Step 6: Final answer
    x = 43,505.26

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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.