Home / 71,140.83-98,174.21-40,925.40

Finding the Fourth Proportional to 71,140.83, 98,174.21 and 40,925.40

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Solution

The fourth proportional to 71,140.83, 98,174.21 and 40,925.40 is: 56,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,140.83 : 98,174.21 = 40,925.40 : x
  2. Step 2: Convert to fraction form
    71,140.83/98,174.21 = 40,925.40/x
  3. Step 3: Cross multiply
    71,140.83x = 98,174.21 × 40,925.40
  4. Step 4: Simplify right side
    71,140.83x = 4,017,818,609.31
  5. Step 5: Solve for x
    x = 4,017,818,609.31/71,140.83
  6. Step 6: Final answer
    x = 56,476.97

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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.