Home / 86,362.40-119,175.76-48,638.88

Finding the Fourth Proportional to 86,362.40, 119,175.76 and 48,638.88

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Solution

The fourth proportional to 86,362.40, 119,175.76 and 48,638.88 is: 67,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,362.40 : 119,175.76 = 48,638.88 : x
  2. Step 2: Convert to fraction form
    86,362.40/119,175.76 = 48,638.88/x
  3. Step 3: Cross multiply
    86,362.40x = 119,175.76 × 48,638.88
  4. Step 4: Simplify right side
    86,362.40x = 5,796,575,489.55
  5. Step 5: Solve for x
    x = 5,796,575,489.55/86,362.40
  6. Step 6: Final answer
    x = 67,119.20

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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.