Home / 83,612.50-115,385.43-45,886.66

Finding the Fourth Proportional to 83,612.50, 115,385.43 and 45,886.66

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Solution

The fourth proportional to 83,612.50, 115,385.43 and 45,886.66 is: 63,323.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,612.50 : 115,385.43 = 45,886.66 : x
  2. Step 2: Convert to fraction form
    83,612.50/115,385.43 = 45,886.66/x
  3. Step 3: Cross multiply
    83,612.50x = 115,385.43 × 45,886.66
  4. Step 4: Simplify right side
    83,612.50x = 5,294,651,995.36
  5. Step 5: Solve for x
    x = 5,294,651,995.36/83,612.50
  6. Step 6: Final answer
    x = 63,323.69

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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.