Home / 65,485.74-98,146.37-28,001.78

Finding the Fourth Proportional to 65,485.74, 98,146.37 and 28,001.78

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Solution

The fourth proportional to 65,485.74, 98,146.37 and 28,001.78 is: 41,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.74 : 98,146.37 = 28,001.78 : x
  2. Step 2: Convert to fraction form
    65,485.74/98,146.37 = 28,001.78/x
  3. Step 3: Cross multiply
    65,485.74x = 98,146.37 × 28,001.78
  4. Step 4: Simplify right side
    65,485.74x = 2,748,273,060.54
  5. Step 5: Solve for x
    x = 2,748,273,060.54/65,485.74
  6. Step 6: Final answer
    x = 41,967.50

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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.