Home / 83,441.81-115,154.60-47,643.05

Finding the Fourth Proportional to 83,441.81, 115,154.60 and 47,643.05

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Solution

The fourth proportional to 83,441.81, 115,154.60 and 47,643.05 is: 65,750.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,441.81 : 115,154.60 = 47,643.05 : x
  2. Step 2: Convert to fraction form
    83,441.81/115,154.60 = 47,643.05/x
  3. Step 3: Cross multiply
    83,441.81x = 115,154.60 × 47,643.05
  4. Step 4: Simplify right side
    83,441.81x = 5,486,316,415.20
  5. Step 5: Solve for x
    x = 5,486,316,415.20/83,441.81
  6. Step 6: Final answer
    x = 65,750.21

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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.