Home / 66,200.72-91,334.04-42,341.36

Finding the Fourth Proportional to 66,200.72, 91,334.04 and 42,341.36

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Solution

The fourth proportional to 66,200.72, 91,334.04 and 42,341.36 is: 58,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.72 : 91,334.04 = 42,341.36 : x
  2. Step 2: Convert to fraction form
    66,200.72/91,334.04 = 42,341.36/x
  3. Step 3: Cross multiply
    66,200.72x = 91,334.04 × 42,341.36
  4. Step 4: Simplify right side
    66,200.72x = 3,867,207,467.89
  5. Step 5: Solve for x
    x = 3,867,207,467.89/66,200.72
  6. Step 6: Final answer
    x = 58,416.40

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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.