Home / 83,605.04-115,373.46-47,306.12

Finding the Fourth Proportional to 83,605.04, 115,373.46 and 47,306.12

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Solution

The fourth proportional to 83,605.04, 115,373.46 and 47,306.12 is: 65,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,605.04 : 115,373.46 = 47,306.12 : x
  2. Step 2: Convert to fraction form
    83,605.04/115,373.46 = 47,306.12/x
  3. Step 3: Cross multiply
    83,605.04x = 115,373.46 × 47,306.12
  4. Step 4: Simplify right side
    83,605.04x = 5,457,870,743.58
  5. Step 5: Solve for x
    x = 5,457,870,743.58/83,605.04
  6. Step 6: Final answer
    x = 65,281.60

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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.