Home / 74,117.91-102,281.72-42,287.34

Finding the Fourth Proportional to 74,117.91, 102,281.72 and 42,287.34

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Solution

The fourth proportional to 74,117.91, 102,281.72 and 42,287.34 is: 58,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,117.91 : 102,281.72 = 42,287.34 : x
  2. Step 2: Convert to fraction form
    74,117.91/102,281.72 = 42,287.34/x
  3. Step 3: Cross multiply
    74,117.91x = 102,281.72 × 42,287.34
  4. Step 4: Simplify right side
    74,117.91x = 4,325,221,657.99
  5. Step 5: Solve for x
    x = 4,325,221,657.99/74,117.91
  6. Step 6: Final answer
    x = 58,355.96

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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.