Home / 48,047.76-72,041.81-19,987.47

Finding the Fourth Proportional to 48,047.76, 72,041.81 and 19,987.47

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Solution

The fourth proportional to 48,047.76, 72,041.81 and 19,987.47 is: 29,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,047.76 : 72,041.81 = 19,987.47 : x
  2. Step 2: Convert to fraction form
    48,047.76/72,041.81 = 19,987.47/x
  3. Step 3: Cross multiply
    48,047.76x = 72,041.81 × 19,987.47
  4. Step 4: Simplify right side
    48,047.76x = 1,439,933,416.18
  5. Step 5: Solve for x
    x = 1,439,933,416.18/48,047.76
  6. Step 6: Final answer
    x = 29,968.79

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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.