Home / 48,436.40-72,665.40-18,851.60

Finding the Fourth Proportional to 48,436.40, 72,665.40 and 18,851.60

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Solution

The fourth proportional to 48,436.40, 72,665.40 and 18,851.60 is: 28,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,436.40 : 72,665.40 = 18,851.60 : x
  2. Step 2: Convert to fraction form
    48,436.40/72,665.40 = 18,851.60/x
  3. Step 3: Cross multiply
    48,436.40x = 72,665.40 × 18,851.60
  4. Step 4: Simplify right side
    48,436.40x = 1,369,859,054.64
  5. Step 5: Solve for x
    x = 1,369,859,054.64/48,436.40
  6. Step 6: Final answer
    x = 28,281.60

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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.