Home / 80,397.77-120,598.47-30,501.36

Finding the Fourth Proportional to 80,397.77, 120,598.47 and 30,501.36

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Solution

The fourth proportional to 80,397.77, 120,598.47 and 30,501.36 is: 45,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,397.77 : 120,598.47 = 30,501.36 : x
  2. Step 2: Convert to fraction form
    80,397.77/120,598.47 = 30,501.36/x
  3. Step 3: Cross multiply
    80,397.77x = 120,598.47 × 30,501.36
  4. Step 4: Simplify right side
    80,397.77x = 3,678,417,348.92
  5. Step 5: Solve for x
    x = 3,678,417,348.92/80,397.77
  6. Step 6: Final answer
    x = 45,752.73

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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.