Home / 40,275.18-60,430.78-20,543.34

Finding the Fourth Proportional to 40,275.18, 60,430.78 and 20,543.34

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Solution

The fourth proportional to 40,275.18, 60,430.78 and 20,543.34 is: 30,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,275.18 : 60,430.78 = 20,543.34 : x
  2. Step 2: Convert to fraction form
    40,275.18/60,430.78 = 20,543.34/x
  3. Step 3: Cross multiply
    40,275.18x = 60,430.78 × 20,543.34
  4. Step 4: Simplify right side
    40,275.18x = 1,241,450,060.01
  5. Step 5: Solve for x
    x = 1,241,450,060.01/40,275.18
  6. Step 6: Final answer
    x = 30,824.20

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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.