Home / 80,730.06-121,095.16-38,600.22

Finding the Fourth Proportional to 80,730.06, 121,095.16 and 38,600.22

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Solution

The fourth proportional to 80,730.06, 121,095.16 and 38,600.22 is: 57,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.06 : 121,095.16 = 38,600.22 : x
  2. Step 2: Convert to fraction form
    80,730.06/121,095.16 = 38,600.22/x
  3. Step 3: Cross multiply
    80,730.06x = 121,095.16 × 38,600.22
  4. Step 4: Simplify right side
    80,730.06x = 4,674,299,816.94
  5. Step 5: Solve for x
    x = 4,674,299,816.94/80,730.06
  6. Step 6: Final answer
    x = 57,900.36

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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.