Home / 48,431.04-72,655.20-18,864.96

Finding the Fourth Proportional to 48,431.04, 72,655.20 and 18,864.96

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Solution

The fourth proportional to 48,431.04, 72,655.20 and 18,864.96 is: 28,300.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,431.04 : 72,655.20 = 18,864.96 : x
  2. Step 2: Convert to fraction form
    48,431.04/72,655.20 = 18,864.96/x
  3. Step 3: Cross multiply
    48,431.04x = 72,655.20 × 18,864.96
  4. Step 4: Simplify right side
    48,431.04x = 1,370,637,441.79
  5. Step 5: Solve for x
    x = 1,370,637,441.79/48,431.04
  6. Step 6: Final answer
    x = 28,300.81

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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.