Home / 98,412.10-147,632.55-31,840.90

Finding the Fourth Proportional to 98,412.10, 147,632.55 and 31,840.90

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Solution

The fourth proportional to 98,412.10, 147,632.55 and 31,840.90 is: 47,766.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,412.10 : 147,632.55 = 31,840.90 : x
  2. Step 2: Convert to fraction form
    98,412.10/147,632.55 = 31,840.90/x
  3. Step 3: Cross multiply
    98,412.10x = 147,632.55 × 31,840.90
  4. Step 4: Simplify right side
    98,412.10x = 4,700,753,261.30
  5. Step 5: Solve for x
    x = 4,700,753,261.30/98,412.10
  6. Step 6: Final answer
    x = 47,766.01

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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.