Home / 55,637.11-76,779.23-30,143.65

Finding the Fourth Proportional to 55,637.11, 76,779.23 and 30,143.65

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Solution

The fourth proportional to 55,637.11, 76,779.23 and 30,143.65 is: 41,598.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,637.11 : 76,779.23 = 30,143.65 : x
  2. Step 2: Convert to fraction form
    55,637.11/76,779.23 = 30,143.65/x
  3. Step 3: Cross multiply
    55,637.11x = 76,779.23 × 30,143.65
  4. Step 4: Simplify right side
    55,637.11x = 2,314,405,701.78
  5. Step 5: Solve for x
    x = 2,314,405,701.78/55,637.11
  6. Step 6: Final answer
    x = 41,598.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.