Home / 86,112.81-118,837.67-48,387.69

Finding the Fourth Proportional to 86,112.81, 118,837.67 and 48,387.69

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Solution

The fourth proportional to 86,112.81, 118,837.67 and 48,387.69 is: 66,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,112.81 : 118,837.67 = 48,387.69 : x
  2. Step 2: Convert to fraction form
    86,112.81/118,837.67 = 48,387.69/x
  3. Step 3: Cross multiply
    86,112.81x = 118,837.67 × 48,387.69
  4. Step 4: Simplify right side
    86,112.81x = 5,750,280,094.34
  5. Step 5: Solve for x
    x = 5,750,280,094.34/86,112.81
  6. Step 6: Final answer
    x = 66,776.13

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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.