Home / 78,132.81-107,816.88-44,144.25

Finding the Fourth Proportional to 78,132.81, 107,816.88 and 44,144.25

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Solution

The fourth proportional to 78,132.81, 107,816.88 and 44,144.25 is: 60,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,132.81 : 107,816.88 = 44,144.25 : x
  2. Step 2: Convert to fraction form
    78,132.81/107,816.88 = 44,144.25/x
  3. Step 3: Cross multiply
    78,132.81x = 107,816.88 × 44,144.25
  4. Step 4: Simplify right side
    78,132.81x = 4,759,495,470.48
  5. Step 5: Solve for x
    x = 4,759,495,470.48/78,132.81
  6. Step 6: Final answer
    x = 60,915.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.