Home / 48,779.20-73,111.20-20,699.20

Finding the Fourth Proportional to 48,779.20, 73,111.20 and 20,699.20

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Solution

The fourth proportional to 48,779.20, 73,111.20 and 20,699.20 is: 31,024.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,779.20 : 73,111.20 = 20,699.20 : x
  2. Step 2: Convert to fraction form
    48,779.20/73,111.20 = 20,699.20/x
  3. Step 3: Cross multiply
    48,779.20x = 73,111.20 × 20,699.20
  4. Step 4: Simplify right side
    48,779.20x = 1,513,343,351.04
  5. Step 5: Solve for x
    x = 1,513,343,351.04/48,779.20
  6. Step 6: Final answer
    x = 31,024.36

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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.