Home / 88,174.28-121,681.78-47,888.12

Finding the Fourth Proportional to 88,174.28, 121,681.78 and 47,888.12

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Solution

The fourth proportional to 88,174.28, 121,681.78 and 47,888.12 is: 66,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,174.28 : 121,681.78 = 47,888.12 : x
  2. Step 2: Convert to fraction form
    88,174.28/121,681.78 = 47,888.12/x
  3. Step 3: Cross multiply
    88,174.28x = 121,681.78 × 47,888.12
  4. Step 4: Simplify right side
    88,174.28x = 5,827,111,682.45
  5. Step 5: Solve for x
    x = 5,827,111,682.45/88,174.28
  6. Step 6: Final answer
    x = 66,086.30

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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.