Home / 72,410.20-108,615.30-48,909.40

Finding the Fourth Proportional to 72,410.20, 108,615.30 and 48,909.40

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Solution

The fourth proportional to 72,410.20, 108,615.30 and 48,909.40 is: 73,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,410.20 : 108,615.30 = 48,909.40 : x
  2. Step 2: Convert to fraction form
    72,410.20/108,615.30 = 48,909.40/x
  3. Step 3: Cross multiply
    72,410.20x = 108,615.30 × 48,909.40
  4. Step 4: Simplify right side
    72,410.20x = 5,312,309,153.82
  5. Step 5: Solve for x
    x = 5,312,309,153.82/72,410.20
  6. Step 6: Final answer
    x = 73,364.10

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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.