Home / 82,587.04-113,968.20-48,129.57

Finding the Fourth Proportional to 82,587.04, 113,968.20 and 48,129.57

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Solution

The fourth proportional to 82,587.04, 113,968.20 and 48,129.57 is: 66,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,587.04 : 113,968.20 = 48,129.57 : x
  2. Step 2: Convert to fraction form
    82,587.04/113,968.20 = 48,129.57/x
  3. Step 3: Cross multiply
    82,587.04x = 113,968.20 × 48,129.57
  4. Step 4: Simplify right side
    82,587.04x = 5,485,240,706.57
  5. Step 5: Solve for x
    x = 5,485,240,706.57/82,587.04
  6. Step 6: Final answer
    x = 66,417.70

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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.