Home / 85,769.25-118,213.79-57,037.55

Finding the Fourth Proportional to 85,769.25, 118,213.79 and 57,037.55

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Solution

The fourth proportional to 85,769.25, 118,213.79 and 57,037.55 is: 78,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,769.25 : 118,213.79 = 57,037.55 : x
  2. Step 2: Convert to fraction form
    85,769.25/118,213.79 = 57,037.55/x
  3. Step 3: Cross multiply
    85,769.25x = 118,213.79 × 57,037.55
  4. Step 4: Simplify right side
    85,769.25x = 6,742,624,957.81
  5. Step 5: Solve for x
    x = 6,742,624,957.81/85,769.25
  6. Step 6: Final answer
    x = 78,613.55

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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.