Home / 47,991.02-71,981.66-12,934.22

Finding the Fourth Proportional to 47,991.02, 71,981.66 and 12,934.22

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Solution

The fourth proportional to 47,991.02, 71,981.66 and 12,934.22 is: 19,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,991.02 : 71,981.66 = 12,934.22 : x
  2. Step 2: Convert to fraction form
    47,991.02/71,981.66 = 12,934.22/x
  3. Step 3: Cross multiply
    47,991.02x = 71,981.66 × 12,934.22
  4. Step 4: Simplify right side
    47,991.02x = 931,026,298.83
  5. Step 5: Solve for x
    x = 931,026,298.83/47,991.02
  6. Step 6: Final answer
    x = 19,400.01

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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.