Home / 91,182.10-125,828.01-57,208.90

Finding the Fourth Proportional to 91,182.10, 125,828.01 and 57,208.90

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Solution

The fourth proportional to 91,182.10, 125,828.01 and 57,208.90 is: 78,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,182.10 : 125,828.01 = 57,208.90 : x
  2. Step 2: Convert to fraction form
    91,182.10/125,828.01 = 57,208.90/x
  3. Step 3: Cross multiply
    91,182.10x = 125,828.01 × 57,208.90
  4. Step 4: Simplify right side
    91,182.10x = 7,198,482,041.29
  5. Step 5: Solve for x
    x = 7,198,482,041.29/91,182.10
  6. Step 6: Final answer
    x = 78,946.22

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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.