Home / 86,948.88-130,421.88-27,784.16

Finding the Fourth Proportional to 86,948.88, 130,421.88 and 27,784.16

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Solution

The fourth proportional to 86,948.88, 130,421.88 and 27,784.16 is: 41,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.88 : 130,421.88 = 27,784.16 : x
  2. Step 2: Convert to fraction form
    86,948.88/130,421.88 = 27,784.16/x
  3. Step 3: Cross multiply
    86,948.88x = 130,421.88 × 27,784.16
  4. Step 4: Simplify right side
    86,948.88x = 3,623,662,381.42
  5. Step 5: Solve for x
    x = 3,623,662,381.42/86,948.88
  6. Step 6: Final answer
    x = 41,675.78

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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.