Home / 64,009.04-88,364.88-40,170.80

Finding the Fourth Proportional to 64,009.04, 88,364.88 and 40,170.80

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Solution

The fourth proportional to 64,009.04, 88,364.88 and 40,170.80 is: 55,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,009.04 : 88,364.88 = 40,170.80 : x
  2. Step 2: Convert to fraction form
    64,009.04/88,364.88 = 40,170.80/x
  3. Step 3: Cross multiply
    64,009.04x = 88,364.88 × 40,170.80
  4. Step 4: Simplify right side
    64,009.04x = 3,549,687,921.50
  5. Step 5: Solve for x
    x = 3,549,687,921.50/64,009.04
  6. Step 6: Final answer
    x = 55,456.04

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1.5x scale

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.