Home / 87,903.48-121,307.38-47,617.24

Finding the Fourth Proportional to 87,903.48, 121,307.38 and 47,617.24

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Solution

The fourth proportional to 87,903.48, 121,307.38 and 47,617.24 is: 65,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,903.48 : 121,307.38 = 47,617.24 : x
  2. Step 2: Convert to fraction form
    87,903.48/121,307.38 = 47,617.24/x
  3. Step 3: Cross multiply
    87,903.48x = 121,307.38 × 47,617.24
  4. Step 4: Simplify right side
    87,903.48x = 5,776,322,700.22
  5. Step 5: Solve for x
    x = 5,776,322,700.22/87,903.48
  6. Step 6: Final answer
    x = 65,712.11

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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.