Home / 65,638.80-98,285.40-48,013.20

Finding the Fourth Proportional to 65,638.80, 98,285.40 and 48,013.20

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Solution

The fourth proportional to 65,638.80, 98,285.40 and 48,013.20 is: 71,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,638.80 : 98,285.40 = 48,013.20 : x
  2. Step 2: Convert to fraction form
    65,638.80/98,285.40 = 48,013.20/x
  3. Step 3: Cross multiply
    65,638.80x = 98,285.40 × 48,013.20
  4. Step 4: Simplify right side
    65,638.80x = 4,718,996,567.28
  5. Step 5: Solve for x
    x = 4,718,996,567.28/65,638.80
  6. Step 6: Final answer
    x = 71,893.40

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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.