Home / 98,620.08-147,931.20-28,500

Finding the Fourth Proportional to 98,620.08, 147,931.20 and 28,500

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Solution

The fourth proportional to 98,620.08, 147,931.20 and 28,500 is: 42,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,620.08 : 147,931.20 = 28,500 : x
  2. Step 2: Convert to fraction form
    98,620.08/147,931.20 = 28,500/x
  3. Step 3: Cross multiply
    98,620.08x = 147,931.20 × 28,500
  4. Step 4: Simplify right side
    98,620.08x = 4,216,039,200.00
  5. Step 5: Solve for x
    x = 4,216,039,200.00/98,620.08
  6. Step 6: Final answer
    x = 42,750.31

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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.