Home / 52,276.02-78,386.23-20,684.80

Finding the Fourth Proportional to 52,276.02, 78,386.23 and 20,684.80

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Solution

The fourth proportional to 52,276.02, 78,386.23 and 20,684.80 is: 31,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,276.02 : 78,386.23 = 20,684.80 : x
  2. Step 2: Convert to fraction form
    52,276.02/78,386.23 = 20,684.80/x
  3. Step 3: Cross multiply
    52,276.02x = 78,386.23 × 20,684.80
  4. Step 4: Simplify right side
    52,276.02x = 1,621,403,614.14
  5. Step 5: Solve for x
    x = 1,621,403,614.14/52,276.02
  6. Step 6: Final answer
    x = 31,016.20

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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.