Home / 93,048.09-128,418.63-90,514.95

Finding the Fourth Proportional to 93,048.09, 128,418.63 and 90,514.95

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Solution

The fourth proportional to 93,048.09, 128,418.63 and 90,514.95 is: 124,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,048.09 : 128,418.63 = 90,514.95 : x
  2. Step 2: Convert to fraction form
    93,048.09/128,418.63 = 90,514.95/x
  3. Step 3: Cross multiply
    93,048.09x = 128,418.63 × 90,514.95
  4. Step 4: Simplify right side
    93,048.09x = 11,623,805,873.52
  5. Step 5: Solve for x
    x = 11,623,805,873.52/93,048.09
  6. Step 6: Final answer
    x = 124,922.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.