Home / 42,488.50-63,732.90-19,087.60

Finding the Fourth Proportional to 42,488.50, 63,732.90 and 19,087.60

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Solution

The fourth proportional to 42,488.50, 63,732.90 and 19,087.60 is: 28,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,488.50 : 63,732.90 = 19,087.60 : x
  2. Step 2: Convert to fraction form
    42,488.50/63,732.90 = 19,087.60/x
  3. Step 3: Cross multiply
    42,488.50x = 63,732.90 × 19,087.60
  4. Step 4: Simplify right side
    42,488.50x = 1,216,507,894.99
  5. Step 5: Solve for x
    x = 1,216,507,894.99/42,488.50
  6. Step 6: Final answer
    x = 28,631.46

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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.