Home / 79,955.05-120,075.53-76,740.66

Finding the Fourth Proportional to 79,955.05, 120,075.53 and 76,740.66

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Solution

The fourth proportional to 79,955.05, 120,075.53 and 76,740.66 is: 115,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,955.05 : 120,075.53 = 76,740.66 : x
  2. Step 2: Convert to fraction form
    79,955.05/120,075.53 = 76,740.66/x
  3. Step 3: Cross multiply
    79,955.05x = 120,075.53 × 76,740.66
  4. Step 4: Simplify right side
    79,955.05x = 9,214,675,680.48
  5. Step 5: Solve for x
    x = 9,214,675,680.48/79,955.05
  6. Step 6: Final answer
    x = 115,248.20

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1.5x scale

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.