Home / 86,521.64-119,421.61-48,817.76

Finding the Fourth Proportional to 86,521.64, 119,421.61 and 48,817.76

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Solution

The fourth proportional to 86,521.64, 119,421.61 and 48,817.76 is: 67,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,521.64 : 119,421.61 = 48,817.76 : x
  2. Step 2: Convert to fraction form
    86,521.64/119,421.61 = 48,817.76/x
  3. Step 3: Cross multiply
    86,521.64x = 119,421.61 × 48,817.76
  4. Step 4: Simplify right side
    86,521.64x = 5,829,894,776.64
  5. Step 5: Solve for x
    x = 5,829,894,776.64/86,521.64
  6. Step 6: Final answer
    x = 67,380.77

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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.