Home / 88,265.68-121,809-47,982.14

Finding the Fourth Proportional to 88,265.68, 121,809 and 47,982.14

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Solution

The fourth proportional to 88,265.68, 121,809 and 47,982.14 is: 66,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,265.68 : 121,809 = 47,982.14 : x
  2. Step 2: Convert to fraction form
    88,265.68/121,809 = 47,982.14/x
  3. Step 3: Cross multiply
    88,265.68x = 121,809 × 47,982.14
  4. Step 4: Simplify right side
    88,265.68x = 5,844,656,491.26
  5. Step 5: Solve for x
    x = 5,844,656,491.26/88,265.68
  6. Step 6: Final answer
    x = 66,216.64

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1.5x scale

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.