Home / 85,526.23-128,310.20-60,274.96

Finding the Fourth Proportional to 85,526.23, 128,310.20 and 60,274.96

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Solution

The fourth proportional to 85,526.23, 128,310.20 and 60,274.96 is: 90,427.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,526.23 : 128,310.20 = 60,274.96 : x
  2. Step 2: Convert to fraction form
    85,526.23/128,310.20 = 60,274.96/x
  3. Step 3: Cross multiply
    85,526.23x = 128,310.20 × 60,274.96
  4. Step 4: Simplify right side
    85,526.23x = 7,733,892,172.59
  5. Step 5: Solve for x
    x = 7,733,892,172.59/85,526.23
  6. Step 6: Final answer
    x = 90,427.14

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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.