Home / 83,500.10-115,237.43-45,781.64

Finding the Fourth Proportional to 83,500.10, 115,237.43 and 45,781.64

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Solution

The fourth proportional to 83,500.10, 115,237.43 and 45,781.64 is: 63,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,500.10 : 115,237.43 = 45,781.64 : x
  2. Step 2: Convert to fraction form
    83,500.10/115,237.43 = 45,781.64/x
  3. Step 3: Cross multiply
    83,500.10x = 115,237.43 × 45,781.64
  4. Step 4: Simplify right side
    83,500.10x = 5,275,758,333.51
  5. Step 5: Solve for x
    x = 5,275,758,333.51/83,500.10
  6. Step 6: Final answer
    x = 63,182.66

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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.