Home / 45,303.66-67,965.35-13,713.12

Finding the Fourth Proportional to 45,303.66, 67,965.35 and 13,713.12

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Solution

The fourth proportional to 45,303.66, 67,965.35 and 13,713.12 is: 20,572.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,303.66 : 67,965.35 = 13,713.12 : x
  2. Step 2: Convert to fraction form
    45,303.66/67,965.35 = 13,713.12/x
  3. Step 3: Cross multiply
    45,303.66x = 67,965.35 × 13,713.12
  4. Step 4: Simplify right side
    45,303.66x = 932,016,931.83
  5. Step 5: Solve for x
    x = 932,016,931.83/45,303.66
  6. Step 6: Final answer
    x = 20,572.66

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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.