Home / 76,316.73-114,543.71-40,808.40

Finding the Fourth Proportional to 76,316.73, 114,543.71 and 40,808.40

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Solution

The fourth proportional to 76,316.73, 114,543.71 and 40,808.40 is: 61,249.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,316.73 : 114,543.71 = 40,808.40 : x
  2. Step 2: Convert to fraction form
    76,316.73/114,543.71 = 40,808.40/x
  3. Step 3: Cross multiply
    76,316.73x = 114,543.71 × 40,808.40
  4. Step 4: Simplify right side
    76,316.73x = 4,674,345,535.16
  5. Step 5: Solve for x
    x = 4,674,345,535.16/76,316.73
  6. Step 6: Final answer
    x = 61,249.29

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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.