Home / 48,045.28-72,069.54-12,985.24

Finding the Fourth Proportional to 48,045.28, 72,069.54 and 12,985.24

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Solution

The fourth proportional to 48,045.28, 72,069.54 and 12,985.24 is: 19,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,045.28 : 72,069.54 = 12,985.24 : x
  2. Step 2: Convert to fraction form
    48,045.28/72,069.54 = 12,985.24/x
  3. Step 3: Cross multiply
    48,045.28x = 72,069.54 × 12,985.24
  4. Step 4: Simplify right side
    48,045.28x = 935,840,273.59
  5. Step 5: Solve for x
    x = 935,840,273.59/48,045.28
  6. Step 6: Final answer
    x = 19,478.30

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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.