Home / 48,078.20-72,117.30-13,017.80

Finding the Fourth Proportional to 48,078.20, 72,117.30 and 13,017.80

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Solution

The fourth proportional to 48,078.20, 72,117.30 and 13,017.80 is: 19,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,078.20 : 72,117.30 = 13,017.80 : x
  2. Step 2: Convert to fraction form
    48,078.20/72,117.30 = 13,017.80/x
  3. Step 3: Cross multiply
    48,078.20x = 72,117.30 × 13,017.80
  4. Step 4: Simplify right side
    48,078.20x = 938,808,587.94
  5. Step 5: Solve for x
    x = 938,808,587.94/48,078.20
  6. Step 6: Final answer
    x = 19,526.70

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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.