Home / 57,146.45-78,862.01-31,995.95

Finding the Fourth Proportional to 57,146.45, 78,862.01 and 31,995.95

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Solution

The fourth proportional to 57,146.45, 78,862.01 and 31,995.95 is: 44,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.45 : 78,862.01 = 31,995.95 : x
  2. Step 2: Convert to fraction form
    57,146.45/78,862.01 = 31,995.95/x
  3. Step 3: Cross multiply
    57,146.45x = 78,862.01 × 31,995.95
  4. Step 4: Simplify right side
    57,146.45x = 2,523,264,374.57
  5. Step 5: Solve for x
    x = 2,523,264,374.57/57,146.45
  6. Step 6: Final answer
    x = 44,154.35

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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.