Home / 48,290.76-72,429.98-18,688.34

Finding the Fourth Proportional to 48,290.76, 72,429.98 and 18,688.34

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Solution

The fourth proportional to 48,290.76, 72,429.98 and 18,688.34 is: 28,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,290.76 : 72,429.98 = 18,688.34 : x
  2. Step 2: Convert to fraction form
    48,290.76/72,429.98 = 18,688.34/x
  3. Step 3: Cross multiply
    48,290.76x = 72,429.98 × 18,688.34
  4. Step 4: Simplify right side
    48,290.76x = 1,353,596,092.43
  5. Step 5: Solve for x
    x = 1,353,596,092.43/48,290.76
  6. Step 6: Final answer
    x = 28,030.13

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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.