Home / 70,543.78-97,350.36-40,329.78

Finding the Fourth Proportional to 70,543.78, 97,350.36 and 40,329.78

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Solution

The fourth proportional to 70,543.78, 97,350.36 and 40,329.78 is: 55,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,543.78 : 97,350.36 = 40,329.78 : x
  2. Step 2: Convert to fraction form
    70,543.78/97,350.36 = 40,329.78/x
  3. Step 3: Cross multiply
    70,543.78x = 97,350.36 × 40,329.78
  4. Step 4: Simplify right side
    70,543.78x = 3,926,118,601.72
  5. Step 5: Solve for x
    x = 3,926,118,601.72/70,543.78
  6. Step 6: Final answer
    x = 55,655.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.