Home / 66,237.32-99,309-31,157.84

Finding the Fourth Proportional to 66,237.32, 99,309 and 31,157.84

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Solution

The fourth proportional to 66,237.32, 99,309 and 31,157.84 is: 46,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,237.32 : 99,309 = 31,157.84 : x
  2. Step 2: Convert to fraction form
    66,237.32/99,309 = 31,157.84/x
  3. Step 3: Cross multiply
    66,237.32x = 99,309 × 31,157.84
  4. Step 4: Simplify right side
    66,237.32x = 3,094,253,932.56
  5. Step 5: Solve for x
    x = 3,094,253,932.56/66,237.32
  6. Step 6: Final answer
    x = 46,714.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.