Home / 65,406.36-90,088.88-50,270.08

Finding the Fourth Proportional to 65,406.36, 90,088.88 and 50,270.08

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Solution

The fourth proportional to 65,406.36, 90,088.88 and 50,270.08 is: 69,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,406.36 : 90,088.88 = 50,270.08 : x
  2. Step 2: Convert to fraction form
    65,406.36/90,088.88 = 50,270.08/x
  3. Step 3: Cross multiply
    65,406.36x = 90,088.88 × 50,270.08
  4. Step 4: Simplify right side
    65,406.36x = 4,528,775,204.71
  5. Step 5: Solve for x
    x = 4,528,775,204.71/65,406.36
  6. Step 6: Final answer
    x = 69,240.59

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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.