Home / 76,494.04-105,561.43-42,508.06

Finding the Fourth Proportional to 76,494.04, 105,561.43 and 42,508.06

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Solution

The fourth proportional to 76,494.04, 105,561.43 and 42,508.06 is: 58,660.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,494.04 : 105,561.43 = 42,508.06 : x
  2. Step 2: Convert to fraction form
    76,494.04/105,561.43 = 42,508.06/x
  3. Step 3: Cross multiply
    76,494.04x = 105,561.43 × 42,508.06
  4. Step 4: Simplify right side
    76,494.04x = 4,487,211,600.13
  5. Step 5: Solve for x
    x = 4,487,211,600.13/76,494.04
  6. Step 6: Final answer
    x = 58,660.93

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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.