Home / 85,666.32-118,218.06-47,940.48

Finding the Fourth Proportional to 85,666.32, 118,218.06 and 47,940.48

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Solution

The fourth proportional to 85,666.32, 118,218.06 and 47,940.48 is: 66,157.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,666.32 : 118,218.06 = 47,940.48 : x
  2. Step 2: Convert to fraction form
    85,666.32/118,218.06 = 47,940.48/x
  3. Step 3: Cross multiply
    85,666.32x = 118,218.06 × 47,940.48
  4. Step 4: Simplify right side
    85,666.32x = 5,667,430,541.07
  5. Step 5: Solve for x
    x = 5,667,430,541.07/85,666.32
  6. Step 6: Final answer
    x = 66,157.04

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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.