Home / 85,858.17-118,484.21-48,132.42

Finding the Fourth Proportional to 85,858.17, 118,484.21 and 48,132.42

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Solution

The fourth proportional to 85,858.17, 118,484.21 and 48,132.42 is: 66,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,858.17 : 118,484.21 = 48,132.42 : x
  2. Step 2: Convert to fraction form
    85,858.17/118,484.21 = 48,132.42/x
  3. Step 3: Cross multiply
    85,858.17x = 118,484.21 × 48,132.42
  4. Step 4: Simplify right side
    85,858.17x = 5,702,931,518.43
  5. Step 5: Solve for x
    x = 5,702,931,518.43/85,858.17
  6. Step 6: Final answer
    x = 66,422.70

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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.