Home / 66,430.08-91,674.72-36,215.64

Finding the Fourth Proportional to 66,430.08, 91,674.72 and 36,215.64

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Solution

The fourth proportional to 66,430.08, 91,674.72 and 36,215.64 is: 49,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430.08 : 91,674.72 = 36,215.64 : x
  2. Step 2: Convert to fraction form
    66,430.08/91,674.72 = 36,215.64/x
  3. Step 3: Cross multiply
    66,430.08x = 91,674.72 × 36,215.64
  4. Step 4: Simplify right side
    66,430.08x = 3,320,058,656.62
  5. Step 5: Solve for x
    x = 3,320,058,656.62/66,430.08
  6. Step 6: Final answer
    x = 49,978.24

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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.