Home / 90,403.84-124,859.43-61,674.17

Finding the Fourth Proportional to 90,403.84, 124,859.43 and 61,674.17

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Solution

The fourth proportional to 90,403.84, 124,859.43 and 61,674.17 is: 85,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,403.84 : 124,859.43 = 61,674.17 : x
  2. Step 2: Convert to fraction form
    90,403.84/124,859.43 = 61,674.17/x
  3. Step 3: Cross multiply
    90,403.84x = 124,859.43 × 61,674.17
  4. Step 4: Simplify right side
    90,403.84x = 7,700,601,087.63
  5. Step 5: Solve for x
    x = 7,700,601,087.63/90,403.84
  6. Step 6: Final answer
    x = 85,180.02

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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.