Home / 77,478.12-116,119.71-41,938.02

Finding the Fourth Proportional to 77,478.12, 116,119.71 and 41,938.02

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Solution

The fourth proportional to 77,478.12, 116,119.71 and 41,938.02 is: 62,854.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,478.12 : 116,119.71 = 41,938.02 : x
  2. Step 2: Convert to fraction form
    77,478.12/116,119.71 = 41,938.02/x
  3. Step 3: Cross multiply
    77,478.12x = 116,119.71 × 41,938.02
  4. Step 4: Simplify right side
    77,478.12x = 4,869,830,720.37
  5. Step 5: Solve for x
    x = 4,869,830,720.37/77,478.12
  6. Step 6: Final answer
    x = 62,854.27

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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.