Home / 80,730.35-121,095.59-38,600.52

Finding the Fourth Proportional to 80,730.35, 121,095.59 and 38,600.52

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Solution

The fourth proportional to 80,730.35, 121,095.59 and 38,600.52 is: 57,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.35 : 121,095.59 = 38,600.52 : x
  2. Step 2: Convert to fraction form
    80,730.35/121,095.59 = 38,600.52/x
  3. Step 3: Cross multiply
    80,730.35x = 121,095.59 × 38,600.52
  4. Step 4: Simplify right side
    80,730.35x = 4,674,352,840.21
  5. Step 5: Solve for x
    x = 4,674,352,840.21/80,730.35
  6. Step 6: Final answer
    x = 57,900.82

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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.