Home / 72,643.22-100,260.08-42,432.04

Finding the Fourth Proportional to 72,643.22, 100,260.08 and 42,432.04

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Solution

The fourth proportional to 72,643.22, 100,260.08 and 42,432.04 is: 58,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,643.22 : 100,260.08 = 42,432.04 : x
  2. Step 2: Convert to fraction form
    72,643.22/100,260.08 = 42,432.04/x
  3. Step 3: Cross multiply
    72,643.22x = 100,260.08 × 42,432.04
  4. Step 4: Simplify right side
    72,643.22x = 4,254,239,724.96
  5. Step 5: Solve for x
    x = 4,254,239,724.96/72,643.22
  6. Step 6: Final answer
    x = 58,563.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.