Home / 90,058.48-135,045.32-52,629.36

Finding the Fourth Proportional to 90,058.48, 135,045.32 and 52,629.36

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Solution

The fourth proportional to 90,058.48, 135,045.32 and 52,629.36 is: 78,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,058.48 : 135,045.32 = 52,629.36 : x
  2. Step 2: Convert to fraction form
    90,058.48/135,045.32 = 52,629.36/x
  3. Step 3: Cross multiply
    90,058.48x = 135,045.32 × 52,629.36
  4. Step 4: Simplify right side
    90,058.48x = 7,107,348,762.60
  5. Step 5: Solve for x
    x = 7,107,348,762.60/90,058.48
  6. Step 6: Final answer
    x = 78,919.26

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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.