Home / 74,722.12-112,113.15-30,352.30

Finding the Fourth Proportional to 74,722.12, 112,113.15 and 30,352.30

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Solution

The fourth proportional to 74,722.12, 112,113.15 and 30,352.30 is: 45,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,722.12 : 112,113.15 = 30,352.30 : x
  2. Step 2: Convert to fraction form
    74,722.12/112,113.15 = 30,352.30/x
  3. Step 3: Cross multiply
    74,722.12x = 112,113.15 × 30,352.30
  4. Step 4: Simplify right side
    74,722.12x = 3,402,891,962.75
  5. Step 5: Solve for x
    x = 3,402,891,962.75/74,722.12
  6. Step 6: Final answer
    x = 45,540.62

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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.