Home / 74,459.93-102,756.65-42,639.08

Finding the Fourth Proportional to 74,459.93, 102,756.65 and 42,639.08

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Solution

The fourth proportional to 74,459.93, 102,756.65 and 42,639.08 is: 58,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459.93 : 102,756.65 = 42,639.08 : x
  2. Step 2: Convert to fraction form
    74,459.93/102,756.65 = 42,639.08/x
  3. Step 3: Cross multiply
    74,459.93x = 102,756.65 × 42,639.08
  4. Step 4: Simplify right side
    74,459.93x = 4,381,448,292.90
  5. Step 5: Solve for x
    x = 4,381,448,292.90/74,459.93
  6. Step 6: Final answer
    x = 58,843.04

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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.