Home / 52,277.02-78,387.73-20,685.80

Finding the Fourth Proportional to 52,277.02, 78,387.73 and 20,685.80

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Solution

The fourth proportional to 52,277.02, 78,387.73 and 20,685.80 is: 31,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,277.02 : 78,387.73 = 20,685.80 : x
  2. Step 2: Convert to fraction form
    52,277.02/78,387.73 = 20,685.80/x
  3. Step 3: Cross multiply
    52,277.02x = 78,387.73 × 20,685.80
  4. Step 4: Simplify right side
    52,277.02x = 1,621,512,905.23
  5. Step 5: Solve for x
    x = 1,621,512,905.23/52,277.02
  6. Step 6: Final answer
    x = 31,017.70

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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.