Home / 76,207.55-105,165.28-42,215.93

Finding the Fourth Proportional to 76,207.55, 105,165.28 and 42,215.93

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Solution

The fourth proportional to 76,207.55, 105,165.28 and 42,215.93 is: 58,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,207.55 : 105,165.28 = 42,215.93 : x
  2. Step 2: Convert to fraction form
    76,207.55/105,165.28 = 42,215.93/x
  3. Step 3: Cross multiply
    76,207.55x = 105,165.28 × 42,215.93
  4. Step 4: Simplify right side
    76,207.55x = 4,439,650,098.91
  5. Step 5: Solve for x
    x = 4,439,650,098.91/76,207.55
  6. Step 6: Final answer
    x = 58,257.35

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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.