Home / 66,316.93-91,490.26-40,815.60

Finding the Fourth Proportional to 66,316.93, 91,490.26 and 40,815.60

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Solution

The fourth proportional to 66,316.93, 91,490.26 and 40,815.60 is: 56,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,316.93 : 91,490.26 = 40,815.60 : x
  2. Step 2: Convert to fraction form
    66,316.93/91,490.26 = 40,815.60/x
  3. Step 3: Cross multiply
    66,316.93x = 91,490.26 × 40,815.60
  4. Step 4: Simplify right side
    66,316.93x = 3,734,229,487.46
  5. Step 5: Solve for x
    x = 3,734,229,487.46/66,316.93
  6. Step 6: Final answer
    x = 56,308.84

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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.