Home / 45,019.16-67,543.32-21,642.56

Finding the Fourth Proportional to 45,019.16, 67,543.32 and 21,642.56

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Solution

The fourth proportional to 45,019.16, 67,543.32 and 21,642.56 is: 32,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,019.16 : 67,543.32 = 21,642.56 : x
  2. Step 2: Convert to fraction form
    45,019.16/67,543.32 = 21,642.56/x
  3. Step 3: Cross multiply
    45,019.16x = 67,543.32 × 21,642.56
  4. Step 4: Simplify right side
    45,019.16x = 1,461,810,355.70
  5. Step 5: Solve for x
    x = 1,461,810,355.70/45,019.16
  6. Step 6: Final answer
    x = 32,470.85

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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.