Home / 80,501.40-120,752.10-21,346.20

Finding the Fourth Proportional to 80,501.40, 120,752.10 and 21,346.20

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Solution

The fourth proportional to 80,501.40, 120,752.10 and 21,346.20 is: 32,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,501.40 : 120,752.10 = 21,346.20 : x
  2. Step 2: Convert to fraction form
    80,501.40/120,752.10 = 21,346.20/x
  3. Step 3: Cross multiply
    80,501.40x = 120,752.10 × 21,346.20
  4. Step 4: Simplify right side
    80,501.40x = 2,577,598,477.02
  5. Step 5: Solve for x
    x = 2,577,598,477.02/80,501.40
  6. Step 6: Final answer
    x = 32,019.30

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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.