Home / 48,539.12-66,970.92-28,400.96

Finding the Fourth Proportional to 48,539.12, 66,970.92 and 28,400.96

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Solution

The fourth proportional to 48,539.12, 66,970.92 and 28,400.96 is: 39,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,539.12 : 66,970.92 = 28,400.96 : x
  2. Step 2: Convert to fraction form
    48,539.12/66,970.92 = 28,400.96/x
  3. Step 3: Cross multiply
    48,539.12x = 66,970.92 × 28,400.96
  4. Step 4: Simplify right side
    48,539.12x = 1,902,038,420.08
  5. Step 5: Solve for x
    x = 1,902,038,420.08/48,539.12
  6. Step 6: Final answer
    x = 39,185.68

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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.