Home / 74,144.31-102,319.65-40,152.83

Finding the Fourth Proportional to 74,144.31, 102,319.65 and 40,152.83

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Solution

The fourth proportional to 74,144.31, 102,319.65 and 40,152.83 is: 55,411.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.31 : 102,319.65 = 40,152.83 : x
  2. Step 2: Convert to fraction form
    74,144.31/102,319.65 = 40,152.83/x
  3. Step 3: Cross multiply
    74,144.31x = 102,319.65 × 40,152.83
  4. Step 4: Simplify right side
    74,144.31x = 4,108,423,000.51
  5. Step 5: Solve for x
    x = 4,108,423,000.51/74,144.31
  6. Step 6: Final answer
    x = 55,411.17

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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.