Home / 71,964.40-99,341.58-45,122.20

Finding the Fourth Proportional to 71,964.40, 99,341.58 and 45,122.20

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Solution

The fourth proportional to 71,964.40, 99,341.58 and 45,122.20 is: 62,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,964.40 : 99,341.58 = 45,122.20 : x
  2. Step 2: Convert to fraction form
    71,964.40/99,341.58 = 45,122.20/x
  3. Step 3: Cross multiply
    71,964.40x = 99,341.58 × 45,122.20
  4. Step 4: Simplify right side
    71,964.40x = 4,482,510,641.08
  5. Step 5: Solve for x
    x = 4,482,510,641.08/71,964.40
  6. Step 6: Final answer
    x = 62,287.89

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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.