Home / 66,392.09-99,624.59-31,330.83

Finding the Fourth Proportional to 66,392.09, 99,624.59 and 31,330.83

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Solution

The fourth proportional to 66,392.09, 99,624.59 and 31,330.83 is: 47,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.09 : 99,624.59 = 31,330.83 : x
  2. Step 2: Convert to fraction form
    66,392.09/99,624.59 = 31,330.83/x
  3. Step 3: Cross multiply
    66,392.09x = 99,624.59 × 31,330.83
  4. Step 4: Simplify right side
    66,392.09x = 3,121,320,936.46
  5. Step 5: Solve for x
    x = 3,121,320,936.46/66,392.09
  6. Step 6: Final answer
    x = 47,013.45

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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.