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Finding the Fourth Proportional to 90,089.84, 124,326.28 and 49,804.22

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Solution

The fourth proportional to 90,089.84, 124,326.28 and 49,804.22 is: 68,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,089.84 : 124,326.28 = 49,804.22 : x
  2. Step 2: Convert to fraction form
    90,089.84/124,326.28 = 49,804.22/x
  3. Step 3: Cross multiply
    90,089.84x = 124,326.28 × 49,804.22
  4. Step 4: Simplify right side
    90,089.84x = 6,191,973,400.90
  5. Step 5: Solve for x
    x = 6,191,973,400.90/90,089.84
  6. Step 6: Final answer
    x = 68,731.10

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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.