Home / 65,389.84-90,288.66-50,258.32

Finding the Fourth Proportional to 65,389.84, 90,288.66 and 50,258.32

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Solution

The fourth proportional to 65,389.84, 90,288.66 and 50,258.32 is: 69,395.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,389.84 : 90,288.66 = 50,258.32 : x
  2. Step 2: Convert to fraction form
    65,389.84/90,288.66 = 50,258.32/x
  3. Step 3: Cross multiply
    65,389.84x = 90,288.66 × 50,258.32
  4. Step 4: Simplify right side
    65,389.84x = 4,537,756,366.65
  5. Step 5: Solve for x
    x = 4,537,756,366.65/65,389.84
  6. Step 6: Final answer
    x = 69,395.43

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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.