Home / 86,211.18-129,316.59-23,881.50

Finding the Fourth Proportional to 86,211.18, 129,316.59 and 23,881.50

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Solution

The fourth proportional to 86,211.18, 129,316.59 and 23,881.50 is: 35,822.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211.18 : 129,316.59 = 23,881.50 : x
  2. Step 2: Convert to fraction form
    86,211.18/129,316.59 = 23,881.50/x
  3. Step 3: Cross multiply
    86,211.18x = 129,316.59 × 23,881.50
  4. Step 4: Simplify right side
    86,211.18x = 3,088,274,144.09
  5. Step 5: Solve for x
    x = 3,088,274,144.09/86,211.18
  6. Step 6: Final answer
    x = 35,822.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.