Home / 98,417.36-135,816.51-55,397.70

Finding the Fourth Proportional to 98,417.36, 135,816.51 and 55,397.70

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Solution

The fourth proportional to 98,417.36, 135,816.51 and 55,397.70 is: 76,449.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,417.36 : 135,816.51 = 55,397.70 : x
  2. Step 2: Convert to fraction form
    98,417.36/135,816.51 = 55,397.70/x
  3. Step 3: Cross multiply
    98,417.36x = 135,816.51 × 55,397.70
  4. Step 4: Simplify right side
    98,417.36x = 7,523,922,276.03
  5. Step 5: Solve for x
    x = 7,523,922,276.03/98,417.36
  6. Step 6: Final answer
    x = 76,449.14

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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.