Home / 85,822.81-128,769.75-46,333.49

Finding the Fourth Proportional to 85,822.81, 128,769.75 and 46,333.49

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Solution

The fourth proportional to 85,822.81, 128,769.75 and 46,333.49 is: 69,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,822.81 : 128,769.75 = 46,333.49 : x
  2. Step 2: Convert to fraction form
    85,822.81/128,769.75 = 46,333.49/x
  3. Step 3: Cross multiply
    85,822.81x = 128,769.75 × 46,333.49
  4. Step 4: Simplify right side
    85,822.81x = 5,966,351,280.08
  5. Step 5: Solve for x
    x = 5,966,351,280.08/85,822.81
  6. Step 6: Final answer
    x = 69,519.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.