Home / 83,830.20-115,686.50-45,590.58

Finding the Fourth Proportional to 83,830.20, 115,686.50 and 45,590.58

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Solution

The fourth proportional to 83,830.20, 115,686.50 and 45,590.58 is: 62,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.20 : 115,686.50 = 45,590.58 : x
  2. Step 2: Convert to fraction form
    83,830.20/115,686.50 = 45,590.58/x
  3. Step 3: Cross multiply
    83,830.20x = 115,686.50 × 45,590.58
  4. Step 4: Simplify right side
    83,830.20x = 5,274,214,633.17
  5. Step 5: Solve for x
    x = 5,274,214,633.17/83,830.20
  6. Step 6: Final answer
    x = 62,915.45

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1.5x scale

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.