Home / 90,239.48-124,476.00-57,963.23

Finding the Fourth Proportional to 90,239.48, 124,476.00 and 57,963.23

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Solution

The fourth proportional to 90,239.48, 124,476.00 and 57,963.23 is: 79,954.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,239.48 : 124,476.00 = 57,963.23 : x
  2. Step 2: Convert to fraction form
    90,239.48/124,476.00 = 57,963.23/x
  3. Step 3: Cross multiply
    90,239.48x = 124,476.00 × 57,963.23
  4. Step 4: Simplify right side
    90,239.48x = 7,215,031,364.90
  5. Step 5: Solve for x
    x = 7,215,031,364.90/90,239.48
  6. Step 6: Final answer
    x = 79,954.27

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1.5x scale

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.