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Finding the Fourth Proportional to 60,301.89, 90,457.15 and 15,928.20

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Solution

The fourth proportional to 60,301.89, 90,457.15 and 15,928.20 is: 23,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,301.89 : 90,457.15 = 15,928.20 : x
  2. Step 2: Convert to fraction form
    60,301.89/90,457.15 = 15,928.20/x
  3. Step 3: Cross multiply
    60,301.89x = 90,457.15 × 15,928.20
  4. Step 4: Simplify right side
    60,301.89x = 1,440,819,576.63
  5. Step 5: Solve for x
    x = 1,440,819,576.63/60,301.89
  6. Step 6: Final answer
    x = 23,893.44

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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.