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Finding the Fourth Proportional to 79,955.47, 119,287.96 and 77,048.11

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Solution

The fourth proportional to 79,955.47, 119,287.96 and 77,048.11 is: 114,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,955.47 : 119,287.96 = 77,048.11 : x
  2. Step 2: Convert to fraction form
    79,955.47/119,287.96 = 77,048.11/x
  3. Step 3: Cross multiply
    79,955.47x = 119,287.96 × 77,048.11
  4. Step 4: Simplify right side
    79,955.47x = 9,190,911,820.25
  5. Step 5: Solve for x
    x = 9,190,911,820.25/79,955.47
  6. Step 6: Final answer
    x = 114,950.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.