Home / 76,899.60-115,381.80-41,864.40

Finding the Fourth Proportional to 76,899.60, 115,381.80 and 41,864.40

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Solution

The fourth proportional to 76,899.60, 115,381.80 and 41,864.40 is: 62,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,899.60 : 115,381.80 = 41,864.40 : x
  2. Step 2: Convert to fraction form
    76,899.60/115,381.80 = 41,864.40/x
  3. Step 3: Cross multiply
    76,899.60x = 115,381.80 × 41,864.40
  4. Step 4: Simplify right side
    76,899.60x = 4,830,389,827.92
  5. Step 5: Solve for x
    x = 4,830,389,827.92/76,899.60
  6. Step 6: Final answer
    x = 62,814.24

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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.