Home / 90,389.43-124,746.21-52,661.25

Finding the Fourth Proportional to 90,389.43, 124,746.21 and 52,661.25

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Solution

The fourth proportional to 90,389.43, 124,746.21 and 52,661.25 is: 72,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,389.43 : 124,746.21 = 52,661.25 : x
  2. Step 2: Convert to fraction form
    90,389.43/124,746.21 = 52,661.25/x
  3. Step 3: Cross multiply
    90,389.43x = 124,746.21 × 52,661.25
  4. Step 4: Simplify right side
    90,389.43x = 6,569,291,351.36
  5. Step 5: Solve for x
    x = 6,569,291,351.36/90,389.43
  6. Step 6: Final answer
    x = 72,677.65

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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.