Home / 90,085.99-124,312.73-51,839.36

Finding the Fourth Proportional to 90,085.99, 124,312.73 and 51,839.36

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Solution

The fourth proportional to 90,085.99, 124,312.73 and 51,839.36 is: 71,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,085.99 : 124,312.73 = 51,839.36 : x
  2. Step 2: Convert to fraction form
    90,085.99/124,312.73 = 51,839.36/x
  3. Step 3: Cross multiply
    90,085.99x = 124,312.73 × 51,839.36
  4. Step 4: Simplify right side
    90,085.99x = 6,444,292,363.05
  5. Step 5: Solve for x
    x = 6,444,292,363.05/90,085.99
  6. Step 6: Final answer
    x = 71,534.90

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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.