Home / 42,690.70-64,036.05-23,007.70

Finding the Fourth Proportional to 42,690.70, 64,036.05 and 23,007.70

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Solution

The fourth proportional to 42,690.70, 64,036.05 and 23,007.70 is: 34,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,690.70 : 64,036.05 = 23,007.70 : x
  2. Step 2: Convert to fraction form
    42,690.70/64,036.05 = 23,007.70/x
  3. Step 3: Cross multiply
    42,690.70x = 64,036.05 × 23,007.70
  4. Step 4: Simplify right side
    42,690.70x = 1,473,322,227.59
  5. Step 5: Solve for x
    x = 1,473,322,227.59/42,690.70
  6. Step 6: Final answer
    x = 34,511.55

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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.