Home / 57,038.52-78,711.18-31,887.96

Finding the Fourth Proportional to 57,038.52, 78,711.18 and 31,887.96

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Solution

The fourth proportional to 57,038.52, 78,711.18 and 31,887.96 is: 44,004.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,038.52 : 78,711.18 = 31,887.96 : x
  2. Step 2: Convert to fraction form
    57,038.52/78,711.18 = 31,887.96/x
  3. Step 3: Cross multiply
    57,038.52x = 78,711.18 × 31,887.96
  4. Step 4: Simplify right side
    57,038.52x = 2,509,938,959.39
  5. Step 5: Solve for x
    x = 2,509,938,959.39/57,038.52
  6. Step 6: Final answer
    x = 44,004.28

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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.