Home / 57,214.01-78,955.34-31,720.30

Finding the Fourth Proportional to 57,214.01, 78,955.34 and 31,720.30

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Solution

The fourth proportional to 57,214.01, 78,955.34 and 31,720.30 is: 43,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,214.01 : 78,955.34 = 31,720.30 : x
  2. Step 2: Convert to fraction form
    57,214.01/78,955.34 = 31,720.30/x
  3. Step 3: Cross multiply
    57,214.01x = 78,955.34 × 31,720.30
  4. Step 4: Simplify right side
    57,214.01x = 2,504,486,715.41
  5. Step 5: Solve for x
    x = 2,504,486,715.41/57,214.01
  6. Step 6: Final answer
    x = 43,774.01

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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.