Home / 85,664.16-118,216.26-47,938.32

Finding the Fourth Proportional to 85,664.16, 118,216.26 and 47,938.32

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Solution

The fourth proportional to 85,664.16, 118,216.26 and 47,938.32 is: 66,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,664.16 : 118,216.26 = 47,938.32 : x
  2. Step 2: Convert to fraction form
    85,664.16/118,216.26 = 47,938.32/x
  3. Step 3: Cross multiply
    85,664.16x = 118,216.26 × 47,938.32
  4. Step 4: Simplify right side
    85,664.16x = 5,667,088,901.08
  5. Step 5: Solve for x
    x = 5,667,088,901.08/85,664.16
  6. Step 6: Final answer
    x = 66,154.72

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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.