Home / 53,711.30-74,113.36-31,045.90

Finding the Fourth Proportional to 53,711.30, 74,113.36 and 31,045.90

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Solution

The fourth proportional to 53,711.30, 74,113.36 and 31,045.90 is: 42,838.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,711.30 : 74,113.36 = 31,045.90 : x
  2. Step 2: Convert to fraction form
    53,711.30/74,113.36 = 31,045.90/x
  3. Step 3: Cross multiply
    53,711.30x = 74,113.36 × 31,045.90
  4. Step 4: Simplify right side
    53,711.30x = 2,300,915,963.22
  5. Step 5: Solve for x
    x = 2,300,915,963.22/53,711.30
  6. Step 6: Final answer
    x = 42,838.58

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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.