Home / 85,862.53-128,779.22-22,683.34

Finding the Fourth Proportional to 85,862.53, 128,779.22 and 22,683.34

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Solution

The fourth proportional to 85,862.53, 128,779.22 and 22,683.34 is: 34,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,862.53 : 128,779.22 = 22,683.34 : x
  2. Step 2: Convert to fraction form
    85,862.53/128,779.22 = 22,683.34/x
  3. Step 3: Cross multiply
    85,862.53x = 128,779.22 × 22,683.34
  4. Step 4: Simplify right side
    85,862.53x = 2,921,142,718.78
  5. Step 5: Solve for x
    x = 2,921,142,718.78/85,862.53
  6. Step 6: Final answer
    x = 34,021.16

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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.