Home / 48,501.96-72,754.38-18,918.60

Finding the Fourth Proportional to 48,501.96, 72,754.38 and 18,918.60

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Solution

The fourth proportional to 48,501.96, 72,754.38 and 18,918.60 is: 28,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,501.96 : 72,754.38 = 18,918.60 : x
  2. Step 2: Convert to fraction form
    48,501.96/72,754.38 = 18,918.60/x
  3. Step 3: Cross multiply
    48,501.96x = 72,754.38 × 18,918.60
  4. Step 4: Simplify right side
    48,501.96x = 1,376,411,013.47
  5. Step 5: Solve for x
    x = 1,376,411,013.47/48,501.96
  6. Step 6: Final answer
    x = 28,378.46

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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.