Home / 57,079.31-85,626.53-21,050.91

Finding the Fourth Proportional to 57,079.31, 85,626.53 and 21,050.91

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Solution

The fourth proportional to 57,079.31, 85,626.53 and 21,050.91 is: 31,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,079.31 : 85,626.53 = 21,050.91 : x
  2. Step 2: Convert to fraction form
    57,079.31/85,626.53 = 21,050.91/x
  3. Step 3: Cross multiply
    57,079.31x = 85,626.53 × 21,050.91
  4. Step 4: Simplify right side
    57,079.31x = 1,802,516,409.80
  5. Step 5: Solve for x
    x = 1,802,516,409.80/57,079.31
  6. Step 6: Final answer
    x = 31,579.16

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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.