Home / 86,841.60-119,840.76-49,117.20

Finding the Fourth Proportional to 86,841.60, 119,840.76 and 49,117.20

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Solution

The fourth proportional to 86,841.60, 119,840.76 and 49,117.20 is: 67,781.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,841.60 : 119,840.76 = 49,117.20 : x
  2. Step 2: Convert to fraction form
    86,841.60/119,840.76 = 49,117.20/x
  3. Step 3: Cross multiply
    86,841.60x = 119,840.76 × 49,117.20
  4. Step 4: Simplify right side
    86,841.60x = 5,886,242,577.07
  5. Step 5: Solve for x
    x = 5,886,242,577.07/86,841.60
  6. Step 6: Final answer
    x = 67,781.37

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Half scale
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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.