Home / 74,192.85-102,421.59-42,355.59

Finding the Fourth Proportional to 74,192.85, 102,421.59 and 42,355.59

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Solution

The fourth proportional to 74,192.85, 102,421.59 and 42,355.59 is: 58,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,192.85 : 102,421.59 = 42,355.59 : x
  2. Step 2: Convert to fraction form
    74,192.85/102,421.59 = 42,355.59/x
  3. Step 3: Cross multiply
    74,192.85x = 102,421.59 × 42,355.59
  4. Step 4: Simplify right side
    74,192.85x = 4,338,126,873.19
  5. Step 5: Solve for x
    x = 4,338,126,873.19/74,192.85
  6. Step 6: Final answer
    x = 58,470.96

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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.