Home / 48,368.79-72,539.42-18,780.30

Finding the Fourth Proportional to 48,368.79, 72,539.42 and 18,780.30

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Solution

The fourth proportional to 48,368.79, 72,539.42 and 18,780.30 is: 28,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,368.79 : 72,539.42 = 18,780.30 : x
  2. Step 2: Convert to fraction form
    48,368.79/72,539.42 = 18,780.30/x
  3. Step 3: Cross multiply
    48,368.79x = 72,539.42 × 18,780.30
  4. Step 4: Simplify right side
    48,368.79x = 1,362,311,975.52
  5. Step 5: Solve for x
    x = 1,362,311,975.52/48,368.79
  6. Step 6: Final answer
    x = 28,165.10

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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.