Home / 86,501.09-129,740.47-27,342.74

Finding the Fourth Proportional to 86,501.09, 129,740.47 and 27,342.74

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Solution

The fourth proportional to 86,501.09, 129,740.47 and 27,342.74 is: 41,010.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,501.09 : 129,740.47 = 27,342.74 : x
  2. Step 2: Convert to fraction form
    86,501.09/129,740.47 = 27,342.74/x
  3. Step 3: Cross multiply
    86,501.09x = 129,740.47 × 27,342.74
  4. Step 4: Simplify right side
    86,501.09x = 3,547,459,938.69
  5. Step 5: Solve for x
    x = 3,547,459,938.69/86,501.09
  6. Step 6: Final answer
    x = 41,010.58

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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.