Home / 86,143.30-118,869.33-48,416.74

Finding the Fourth Proportional to 86,143.30, 118,869.33 and 48,416.74

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Solution

The fourth proportional to 86,143.30, 118,869.33 and 48,416.74 is: 66,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,143.30 : 118,869.33 = 48,416.74 : x
  2. Step 2: Convert to fraction form
    86,143.30/118,869.33 = 48,416.74/x
  3. Step 3: Cross multiply
    86,143.30x = 118,869.33 × 48,416.74
  4. Step 4: Simplify right side
    86,143.30x = 5,755,265,444.58
  5. Step 5: Solve for x
    x = 5,755,265,444.58/86,143.30
  6. Step 6: Final answer
    x = 66,810.37

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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.