Home / 98,530.76-135,972.57-56,089.25

Finding the Fourth Proportional to 98,530.76, 135,972.57 and 56,089.25

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Solution

The fourth proportional to 98,530.76, 135,972.57 and 56,089.25 is: 77,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,530.76 : 135,972.57 = 56,089.25 : x
  2. Step 2: Convert to fraction form
    98,530.76/135,972.57 = 56,089.25/x
  3. Step 3: Cross multiply
    98,530.76x = 135,972.57 × 56,089.25
  4. Step 4: Simplify right side
    98,530.76x = 7,626,599,471.87
  5. Step 5: Solve for x
    x = 7,626,599,471.87/98,530.76
  6. Step 6: Final answer
    x = 77,403.23

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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.