Home / 57,121.02-78,817.64-35,885.25

Finding the Fourth Proportional to 57,121.02, 78,817.64 and 35,885.25

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Solution

The fourth proportional to 57,121.02, 78,817.64 and 35,885.25 is: 49,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.02 : 78,817.64 = 35,885.25 : x
  2. Step 2: Convert to fraction form
    57,121.02/78,817.64 = 35,885.25/x
  3. Step 3: Cross multiply
    57,121.02x = 78,817.64 × 35,885.25
  4. Step 4: Simplify right side
    57,121.02x = 2,828,390,536.38
  5. Step 5: Solve for x
    x = 2,828,390,536.38/57,121.02
  6. Step 6: Final answer
    x = 49,515.76

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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.