Home / 85,598.52-128,328.20-35,715.79

Finding the Fourth Proportional to 85,598.52, 128,328.20 and 35,715.79

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Solution

The fourth proportional to 85,598.52, 128,328.20 and 35,715.79 is: 53,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.52 : 128,328.20 = 35,715.79 : x
  2. Step 2: Convert to fraction form
    85,598.52/128,328.20 = 35,715.79/x
  3. Step 3: Cross multiply
    85,598.52x = 128,328.20 × 35,715.79
  4. Step 4: Simplify right side
    85,598.52x = 4,583,342,436.20
  5. Step 5: Solve for x
    x = 4,583,342,436.20/85,598.52
  6. Step 6: Final answer
    x = 53,544.64

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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.