Home / 83,426.61-115,128.45-45,186.07

Finding the Fourth Proportional to 83,426.61, 115,128.45 and 45,186.07

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Solution

The fourth proportional to 83,426.61, 115,128.45 and 45,186.07 is: 62,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,426.61 : 115,128.45 = 45,186.07 : x
  2. Step 2: Convert to fraction form
    83,426.61/115,128.45 = 45,186.07/x
  3. Step 3: Cross multiply
    83,426.61x = 115,128.45 × 45,186.07
  4. Step 4: Simplify right side
    83,426.61x = 5,202,201,515.95
  5. Step 5: Solve for x
    x = 5,202,201,515.95/83,426.61
  6. Step 6: Final answer
    x = 62,356.62

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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.