Home / 48,009.76-66,224.34-30,987.28

Finding the Fourth Proportional to 48,009.76, 66,224.34 and 30,987.28

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Solution

The fourth proportional to 48,009.76, 66,224.34 and 30,987.28 is: 42,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,009.76 : 66,224.34 = 30,987.28 : x
  2. Step 2: Convert to fraction form
    48,009.76/66,224.34 = 30,987.28/x
  3. Step 3: Cross multiply
    48,009.76x = 66,224.34 × 30,987.28
  4. Step 4: Simplify right side
    48,009.76x = 2,052,112,166.40
  5. Step 5: Solve for x
    x = 2,052,112,166.40/48,009.76
  6. Step 6: Final answer
    x = 42,743.65

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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.