Home / 66,412.20-91,765.50-53,093.40

Finding the Fourth Proportional to 66,412.20, 91,765.50 and 53,093.40

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Solution

The fourth proportional to 66,412.20, 91,765.50 and 53,093.40 is: 73,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,412.20 : 91,765.50 = 53,093.40 : x
  2. Step 2: Convert to fraction form
    66,412.20/91,765.50 = 53,093.40/x
  3. Step 3: Cross multiply
    66,412.20x = 91,765.50 × 53,093.40
  4. Step 4: Simplify right side
    66,412.20x = 4,872,142,397.70
  5. Step 5: Solve for x
    x = 4,872,142,397.70/66,412.20
  6. Step 6: Final answer
    x = 73,362.16

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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.