Home / 86,616.48-129,820.08-42,176.64

Finding the Fourth Proportional to 86,616.48, 129,820.08 and 42,176.64

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Solution

The fourth proportional to 86,616.48, 129,820.08 and 42,176.64 is: 63,214.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,616.48 : 129,820.08 = 42,176.64 : x
  2. Step 2: Convert to fraction form
    86,616.48/129,820.08 = 42,176.64/x
  3. Step 3: Cross multiply
    86,616.48x = 129,820.08 × 42,176.64
  4. Step 4: Simplify right side
    86,616.48x = 5,475,374,778.93
  5. Step 5: Solve for x
    x = 5,475,374,778.93/86,616.48
  6. Step 6: Final answer
    x = 63,214.01

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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.