Home / 90,476.64-124,855.16-49,640.49

Finding the Fourth Proportional to 90,476.64, 124,855.16 and 49,640.49

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Solution

The fourth proportional to 90,476.64, 124,855.16 and 49,640.49 is: 68,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,476.64 : 124,855.16 = 49,640.49 : x
  2. Step 2: Convert to fraction form
    90,476.64/124,855.16 = 49,640.49/x
  3. Step 3: Cross multiply
    90,476.64x = 124,855.16 × 49,640.49
  4. Step 4: Simplify right side
    90,476.64x = 6,197,871,073.23
  5. Step 5: Solve for x
    x = 6,197,871,073.23/90,476.64
  6. Step 6: Final answer
    x = 68,502.45

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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.