Home / 90,068.88-124,287.56-49,782.64

Finding the Fourth Proportional to 90,068.88, 124,287.56 and 49,782.64

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Solution

The fourth proportional to 90,068.88, 124,287.56 and 49,782.64 is: 68,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,068.88 : 124,287.56 = 49,782.64 : x
  2. Step 2: Convert to fraction form
    90,068.88/124,287.56 = 49,782.64/x
  3. Step 3: Cross multiply
    90,068.88x = 124,287.56 × 49,782.64
  4. Step 4: Simplify right side
    90,068.88x = 6,187,362,855.96
  5. Step 5: Solve for x
    x = 6,187,362,855.96/90,068.88
  6. Step 6: Final answer
    x = 68,695.90

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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.