Home / 67,316.07-100,925.51-20,543.43

Finding the Fourth Proportional to 67,316.07, 100,925.51 and 20,543.43

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Solution

The fourth proportional to 67,316.07, 100,925.51 and 20,543.43 is: 30,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,316.07 : 100,925.51 = 20,543.43 : x
  2. Step 2: Convert to fraction form
    67,316.07/100,925.51 = 20,543.43/x
  3. Step 3: Cross multiply
    67,316.07x = 100,925.51 × 20,543.43
  4. Step 4: Simplify right side
    67,316.07x = 2,073,356,047.18
  5. Step 5: Solve for x
    x = 2,073,356,047.18/67,316.07
  6. Step 6: Final answer
    x = 30,800.31

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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.