Home / 79,140.56-118,720.21-49,560.84

Finding the Fourth Proportional to 79,140.56, 118,720.21 and 49,560.84

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Solution

The fourth proportional to 79,140.56, 118,720.21 and 49,560.84 is: 74,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.56 : 118,720.21 = 49,560.84 : x
  2. Step 2: Convert to fraction form
    79,140.56/118,720.21 = 49,560.84/x
  3. Step 3: Cross multiply
    79,140.56x = 118,720.21 × 49,560.84
  4. Step 4: Simplify right side
    79,140.56x = 5,883,873,332.58
  5. Step 5: Solve for x
    x = 5,883,873,332.58/79,140.56
  6. Step 6: Final answer
    x = 74,347.13

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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.