Home / 42,490.36-63,735-19,100.26

Finding the Fourth Proportional to 42,490.36, 63,735 and 19,100.26

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Solution

The fourth proportional to 42,490.36, 63,735 and 19,100.26 is: 28,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,490.36 : 63,735 = 19,100.26 : x
  2. Step 2: Convert to fraction form
    42,490.36/63,735 = 19,100.26/x
  3. Step 3: Cross multiply
    42,490.36x = 63,735 × 19,100.26
  4. Step 4: Simplify right side
    42,490.36x = 1,217,355,071.10
  5. Step 5: Solve for x
    x = 1,217,355,071.10/42,490.36
  6. Step 6: Final answer
    x = 28,650.15

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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.