Home / 98,722.81-136,240.61-54,010.81

Finding the Fourth Proportional to 98,722.81, 136,240.61 and 54,010.81

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Solution

The fourth proportional to 98,722.81, 136,240.61 and 54,010.81 is: 74,536.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,722.81 : 136,240.61 = 54,010.81 : x
  2. Step 2: Convert to fraction form
    98,722.81/136,240.61 = 54,010.81/x
  3. Step 3: Cross multiply
    98,722.81x = 136,240.61 × 54,010.81
  4. Step 4: Simplify right side
    98,722.81x = 7,358,465,700.99
  5. Step 5: Solve for x
    x = 7,358,465,700.99/98,722.81
  6. Step 6: Final answer
    x = 74,536.63

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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.