Home / 88,400.72-121,983.80-50,148.08

Finding the Fourth Proportional to 88,400.72, 121,983.80 and 50,148.08

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Solution

The fourth proportional to 88,400.72, 121,983.80 and 50,148.08 is: 69,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,400.72 : 121,983.80 = 50,148.08 : x
  2. Step 2: Convert to fraction form
    88,400.72/121,983.80 = 50,148.08/x
  3. Step 3: Cross multiply
    88,400.72x = 121,983.80 × 50,148.08
  4. Step 4: Simplify right side
    88,400.72x = 6,117,253,361.10
  5. Step 5: Solve for x
    x = 6,117,253,361.10/88,400.72
  6. Step 6: Final answer
    x = 69,199.14

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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.