Home / 86,948.80-130,451.19-39,580.84

Finding the Fourth Proportional to 86,948.80, 130,451.19 and 39,580.84

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Solution

The fourth proportional to 86,948.80, 130,451.19 and 39,580.84 is: 59,384.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.80 : 130,451.19 = 39,580.84 : x
  2. Step 2: Convert to fraction form
    86,948.80/130,451.19 = 39,580.84/x
  3. Step 3: Cross multiply
    86,948.80x = 130,451.19 × 39,580.84
  4. Step 4: Simplify right side
    86,948.80x = 5,163,367,679.20
  5. Step 5: Solve for x
    x = 5,163,367,679.20/86,948.80
  6. Step 6: Final answer
    x = 59,384.00

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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.