Home / 92,810.12-128,070.90-54,571.23

Finding the Fourth Proportional to 92,810.12, 128,070.90 and 54,571.23

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Solution

The fourth proportional to 92,810.12, 128,070.90 and 54,571.23 is: 75,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.12 : 128,070.90 = 54,571.23 : x
  2. Step 2: Convert to fraction form
    92,810.12/128,070.90 = 54,571.23/x
  3. Step 3: Cross multiply
    92,810.12x = 128,070.90 × 54,571.23
  4. Step 4: Simplify right side
    92,810.12x = 6,988,986,540.21
  5. Step 5: Solve for x
    x = 6,988,986,540.21/92,810.12
  6. Step 6: Final answer
    x = 75,304.15

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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.