Home / 90,210.36-124,448.76-58,389.48

Finding the Fourth Proportional to 90,210.36, 124,448.76 and 58,389.48

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Solution

The fourth proportional to 90,210.36, 124,448.76 and 58,389.48 is: 80,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,210.36 : 124,448.76 = 58,389.48 : x
  2. Step 2: Convert to fraction form
    90,210.36/124,448.76 = 58,389.48/x
  3. Step 3: Cross multiply
    90,210.36x = 124,448.76 × 58,389.48
  4. Step 4: Simplify right side
    90,210.36x = 7,266,498,383.04
  5. Step 5: Solve for x
    x = 7,266,498,383.04/90,210.36
  6. Step 6: Final answer
    x = 80,550.60

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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.