Home / 75,060.56-112,582.47-18,900.65

Finding the Fourth Proportional to 75,060.56, 112,582.47 and 18,900.65

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Solution

The fourth proportional to 75,060.56, 112,582.47 and 18,900.65 is: 28,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,060.56 : 112,582.47 = 18,900.65 : x
  2. Step 2: Convert to fraction form
    75,060.56/112,582.47 = 18,900.65/x
  3. Step 3: Cross multiply
    75,060.56x = 112,582.47 × 18,900.65
  4. Step 4: Simplify right side
    75,060.56x = 2,127,881,861.61
  5. Step 5: Solve for x
    x = 2,127,881,861.61/75,060.56
  6. Step 6: Final answer
    x = 28,348.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.