Home / 74,701.55-103,088.15-40,710.03

Finding the Fourth Proportional to 74,701.55, 103,088.15 and 40,710.03

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Solution

The fourth proportional to 74,701.55, 103,088.15 and 40,710.03 is: 56,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.55 : 103,088.15 = 40,710.03 : x
  2. Step 2: Convert to fraction form
    74,701.55/103,088.15 = 40,710.03/x
  3. Step 3: Cross multiply
    74,701.55x = 103,088.15 × 40,710.03
  4. Step 4: Simplify right side
    74,701.55x = 4,196,721,475.59
  5. Step 5: Solve for x
    x = 4,196,721,475.59/74,701.55
  6. Step 6: Final answer
    x = 56,179.85

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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.