Home / 74,256.45-102,479.33-42,424.66

Finding the Fourth Proportional to 74,256.45, 102,479.33 and 42,424.66

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Solution

The fourth proportional to 74,256.45, 102,479.33 and 42,424.66 is: 58,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,256.45 : 102,479.33 = 42,424.66 : x
  2. Step 2: Convert to fraction form
    74,256.45/102,479.33 = 42,424.66/x
  3. Step 3: Cross multiply
    74,256.45x = 102,479.33 × 42,424.66
  4. Step 4: Simplify right side
    74,256.45x = 4,347,650,727.80
  5. Step 5: Solve for x
    x = 4,347,650,727.80/74,256.45
  6. Step 6: Final answer
    x = 58,549.14

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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.