Home / 57,406.08-79,220.34-31,911.65

Finding the Fourth Proportional to 57,406.08, 79,220.34 and 31,911.65

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Solution

The fourth proportional to 57,406.08, 79,220.34 and 31,911.65 is: 44,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,406.08 : 79,220.34 = 31,911.65 : x
  2. Step 2: Convert to fraction form
    57,406.08/79,220.34 = 31,911.65/x
  3. Step 3: Cross multiply
    57,406.08x = 79,220.34 × 31,911.65
  4. Step 4: Simplify right side
    57,406.08x = 2,528,051,366.86
  5. Step 5: Solve for x
    x = 2,528,051,366.86/57,406.08
  6. Step 6: Final answer
    x = 44,038.04

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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.