Home / 86,675.04-129,986.80-36,754.40

Finding the Fourth Proportional to 86,675.04, 129,986.80 and 36,754.40

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Solution

The fourth proportional to 86,675.04, 129,986.80 and 36,754.40 is: 55,120.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,675.04 : 129,986.80 = 36,754.40 : x
  2. Step 2: Convert to fraction form
    86,675.04/129,986.80 = 36,754.40/x
  3. Step 3: Cross multiply
    86,675.04x = 129,986.80 × 36,754.40
  4. Step 4: Simplify right side
    86,675.04x = 4,777,586,841.92
  5. Step 5: Solve for x
    x = 4,777,586,841.92/86,675.04
  6. Step 6: Final answer
    x = 55,120.68

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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.