Home / 65,284.36-90,143.20-50,153.16

Finding the Fourth Proportional to 65,284.36, 90,143.20 and 50,153.16

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Solution

The fourth proportional to 65,284.36, 90,143.20 and 50,153.16 is: 69,250.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,284.36 : 90,143.20 = 50,153.16 : x
  2. Step 2: Convert to fraction form
    65,284.36/90,143.20 = 50,153.16/x
  3. Step 3: Cross multiply
    65,284.36x = 90,143.20 × 50,153.16
  4. Step 4: Simplify right side
    65,284.36x = 4,520,966,332.51
  5. Step 5: Solve for x
    x = 4,520,966,332.51/65,284.36
  6. Step 6: Final answer
    x = 69,250.37

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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.