Home / 74,972.32-103,464-40,982.68

Finding the Fourth Proportional to 74,972.32, 103,464 and 40,982.68

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Solution

The fourth proportional to 74,972.32, 103,464 and 40,982.68 is: 56,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.32 : 103,464 = 40,982.68 : x
  2. Step 2: Convert to fraction form
    74,972.32/103,464 = 40,982.68/x
  3. Step 3: Cross multiply
    74,972.32x = 103,464 × 40,982.68
  4. Step 4: Simplify right side
    74,972.32x = 4,240,232,003.52
  5. Step 5: Solve for x
    x = 4,240,232,003.52/74,972.32
  6. Step 6: Final answer
    x = 56,557.30

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1.5x scale

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.