Home / 57,271.35-79,038.81-31,782.55

Finding the Fourth Proportional to 57,271.35, 79,038.81 and 31,782.55

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Solution

The fourth proportional to 57,271.35, 79,038.81 and 31,782.55 is: 43,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271.35 : 79,038.81 = 31,782.55 : x
  2. Step 2: Convert to fraction form
    57,271.35/79,038.81 = 31,782.55/x
  3. Step 3: Cross multiply
    57,271.35x = 79,038.81 × 31,782.55
  4. Step 4: Simplify right side
    57,271.35x = 2,512,055,193.05
  5. Step 5: Solve for x
    x = 2,512,055,193.05/57,271.35
  6. Step 6: Final answer
    x = 43,862.33

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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.