Home / 101,628.24-152,442.45-42,431.64

Finding the Fourth Proportional to 101,628.24, 152,442.45 and 42,431.64

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Solution

The fourth proportional to 101,628.24, 152,442.45 and 42,431.64 is: 63,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,628.24 : 152,442.45 = 42,431.64 : x
  2. Step 2: Convert to fraction form
    101,628.24/152,442.45 = 42,431.64/x
  3. Step 3: Cross multiply
    101,628.24x = 152,442.45 × 42,431.64
  4. Step 4: Simplify right side
    101,628.24x = 6,468,383,159.12
  5. Step 5: Solve for x
    x = 6,468,383,159.12/101,628.24
  6. Step 6: Final answer
    x = 63,647.50

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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.