Home / 42,571.32-63,870.75-27,809.10

Finding the Fourth Proportional to 42,571.32, 63,870.75 and 27,809.10

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Solution

The fourth proportional to 42,571.32, 63,870.75 and 27,809.10 is: 41,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,571.32 : 63,870.75 = 27,809.10 : x
  2. Step 2: Convert to fraction form
    42,571.32/63,870.75 = 27,809.10/x
  3. Step 3: Cross multiply
    42,571.32x = 63,870.75 × 27,809.10
  4. Step 4: Simplify right side
    42,571.32x = 1,776,188,073.83
  5. Step 5: Solve for x
    x = 1,776,188,073.83/42,571.32
  6. Step 6: Final answer
    x = 41,722.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.