Home / 97,693.24-134,821.92-61,870.20

Finding the Fourth Proportional to 97,693.24, 134,821.92 and 61,870.20

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Solution

The fourth proportional to 97,693.24, 134,821.92 and 61,870.20 is: 85,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,693.24 : 134,821.92 = 61,870.20 : x
  2. Step 2: Convert to fraction form
    97,693.24/134,821.92 = 61,870.20/x
  3. Step 3: Cross multiply
    97,693.24x = 134,821.92 × 61,870.20
  4. Step 4: Simplify right side
    97,693.24x = 8,341,459,154.78
  5. Step 5: Solve for x
    x = 8,341,459,154.78/97,693.24
  6. Step 6: Final answer
    x = 85,384.20

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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.