Home / 86,037.18-118,683.19-54,150.72

Finding the Fourth Proportional to 86,037.18, 118,683.19 and 54,150.72

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Solution

The fourth proportional to 86,037.18, 118,683.19 and 54,150.72 is: 74,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,037.18 : 118,683.19 = 54,150.72 : x
  2. Step 2: Convert to fraction form
    86,037.18/118,683.19 = 54,150.72/x
  3. Step 3: Cross multiply
    86,037.18x = 118,683.19 × 54,150.72
  4. Step 4: Simplify right side
    86,037.18x = 6,426,780,190.40
  5. Step 5: Solve for x
    x = 6,426,780,190.40/86,037.18
  6. Step 6: Final answer
    x = 74,697.71

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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.