Home / 85,159.44-117,520.20-47,435.04

Finding the Fourth Proportional to 85,159.44, 117,520.20 and 47,435.04

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Solution

The fourth proportional to 85,159.44, 117,520.20 and 47,435.04 is: 65,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,159.44 : 117,520.20 = 47,435.04 : x
  2. Step 2: Convert to fraction form
    85,159.44/117,520.20 = 47,435.04/x
  3. Step 3: Cross multiply
    85,159.44x = 117,520.20 × 47,435.04
  4. Step 4: Simplify right side
    85,159.44x = 5,574,575,387.81
  5. Step 5: Solve for x
    x = 5,574,575,387.81/85,159.44
  6. Step 6: Final answer
    x = 65,460.45

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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.