Home / 72,690.30-109,035.45-49,070.70

Finding the Fourth Proportional to 72,690.30, 109,035.45 and 49,070.70

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Solution

The fourth proportional to 72,690.30, 109,035.45 and 49,070.70 is: 73,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,690.30 : 109,035.45 = 49,070.70 : x
  2. Step 2: Convert to fraction form
    72,690.30/109,035.45 = 49,070.70/x
  3. Step 3: Cross multiply
    72,690.30x = 109,035.45 × 49,070.70
  4. Step 4: Simplify right side
    72,690.30x = 5,350,445,856.32
  5. Step 5: Solve for x
    x = 5,350,445,856.32/72,690.30
  6. Step 6: Final answer
    x = 73,606.05

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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.