Home / 86,018.28-118,702.18-48,294.12

Finding the Fourth Proportional to 86,018.28, 118,702.18 and 48,294.12

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Solution

The fourth proportional to 86,018.28, 118,702.18 and 48,294.12 is: 66,644.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,018.28 : 118,702.18 = 48,294.12 : x
  2. Step 2: Convert to fraction form
    86,018.28/118,702.18 = 48,294.12/x
  3. Step 3: Cross multiply
    86,018.28x = 118,702.18 × 48,294.12
  4. Step 4: Simplify right side
    86,018.28x = 5,732,617,325.18
  5. Step 5: Solve for x
    x = 5,732,617,325.18/86,018.28
  6. Step 6: Final answer
    x = 66,644.18

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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.