Home / 66,667.98-92,022.40-38,392.86

Finding the Fourth Proportional to 66,667.98, 92,022.40 and 38,392.86

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Solution

The fourth proportional to 66,667.98, 92,022.40 and 38,392.86 is: 52,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,667.98 : 92,022.40 = 38,392.86 : x
  2. Step 2: Convert to fraction form
    66,667.98/92,022.40 = 38,392.86/x
  3. Step 3: Cross multiply
    66,667.98x = 92,022.40 × 38,392.86
  4. Step 4: Simplify right side
    66,667.98x = 3,533,003,120.06
  5. Step 5: Solve for x
    x = 3,533,003,120.06/66,667.98
  6. Step 6: Final answer
    x = 52,994.00

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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.