Home / 45,246.16-67,879.35-13,656.76

Finding the Fourth Proportional to 45,246.16, 67,879.35 and 13,656.76

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Solution

The fourth proportional to 45,246.16, 67,879.35 and 13,656.76 is: 20,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,246.16 : 67,879.35 = 13,656.76 : x
  2. Step 2: Convert to fraction form
    45,246.16/67,879.35 = 13,656.76/x
  3. Step 3: Cross multiply
    45,246.16x = 67,879.35 × 13,656.76
  4. Step 4: Simplify right side
    45,246.16x = 927,011,991.91
  5. Step 5: Solve for x
    x = 927,011,991.91/45,246.16
  6. Step 6: Final answer
    x = 20,488.19

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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.