Home / 83,539.76-115,285.02-45,814.28

Finding the Fourth Proportional to 83,539.76, 115,285.02 and 45,814.28

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Solution

The fourth proportional to 83,539.76, 115,285.02 and 45,814.28 is: 63,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,539.76 : 115,285.02 = 45,814.28 : x
  2. Step 2: Convert to fraction form
    83,539.76/115,285.02 = 45,814.28/x
  3. Step 3: Cross multiply
    83,539.76x = 115,285.02 × 45,814.28
  4. Step 4: Simplify right side
    83,539.76x = 5,281,700,186.09
  5. Step 5: Solve for x
    x = 5,281,700,186.09/83,539.76
  6. Step 6: Final answer
    x = 63,223.79

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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.