Home / 57,036.90-78,711.42-31,541.94

Finding the Fourth Proportional to 57,036.90, 78,711.42 and 31,541.94

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Solution

The fourth proportional to 57,036.90, 78,711.42 and 31,541.94 is: 43,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,036.90 : 78,711.42 = 31,541.94 : x
  2. Step 2: Convert to fraction form
    57,036.90/78,711.42 = 31,541.94/x
  3. Step 3: Cross multiply
    57,036.90x = 78,711.42 × 31,541.94
  4. Step 4: Simplify right side
    57,036.90x = 2,482,710,886.95
  5. Step 5: Solve for x
    x = 2,482,710,886.95/57,036.90
  6. Step 6: Final answer
    x = 43,528.15

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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.