Home / 48,269.20-72,403.80-12,730.45

Finding the Fourth Proportional to 48,269.20, 72,403.80 and 12,730.45

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Solution

The fourth proportional to 48,269.20, 72,403.80 and 12,730.45 is: 19,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,269.20 : 72,403.80 = 12,730.45 : x
  2. Step 2: Convert to fraction form
    48,269.20/72,403.80 = 12,730.45/x
  3. Step 3: Cross multiply
    48,269.20x = 72,403.80 × 12,730.45
  4. Step 4: Simplify right side
    48,269.20x = 921,732,955.71
  5. Step 5: Solve for x
    x = 921,732,955.71/48,269.20
  6. Step 6: Final answer
    x = 19,095.68

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1.5x scale

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.