Home / 83,438.52-115,148.03-45,712.77

Finding the Fourth Proportional to 83,438.52, 115,148.03 and 45,712.77

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Solution

The fourth proportional to 83,438.52, 115,148.03 and 45,712.77 is: 63,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,438.52 : 115,148.03 = 45,712.77 : x
  2. Step 2: Convert to fraction form
    83,438.52/115,148.03 = 45,712.77/x
  3. Step 3: Cross multiply
    83,438.52x = 115,148.03 × 45,712.77
  4. Step 4: Simplify right side
    83,438.52x = 5,263,735,182.78
  5. Step 5: Solve for x
    x = 5,263,735,182.78/83,438.52
  6. Step 6: Final answer
    x = 63,085.19

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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.