Home / 74,885.88-112,328.61-30,502.20

Finding the Fourth Proportional to 74,885.88, 112,328.61 and 30,502.20

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Solution

The fourth proportional to 74,885.88, 112,328.61 and 30,502.20 is: 45,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885.88 : 112,328.61 = 30,502.20 : x
  2. Step 2: Convert to fraction form
    74,885.88/112,328.61 = 30,502.20/x
  3. Step 3: Cross multiply
    74,885.88x = 112,328.61 × 30,502.20
  4. Step 4: Simplify right side
    74,885.88x = 3,426,269,727.94
  5. Step 5: Solve for x
    x = 3,426,269,727.94/74,885.88
  6. Step 6: Final answer
    x = 45,753.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.