Home / 82,406.16-113,678.64-52,140.48

Finding the Fourth Proportional to 82,406.16, 113,678.64 and 52,140.48

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Solution

The fourth proportional to 82,406.16, 113,678.64 and 52,140.48 is: 71,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,406.16 : 113,678.64 = 52,140.48 : x
  2. Step 2: Convert to fraction form
    82,406.16/113,678.64 = 52,140.48/x
  3. Step 3: Cross multiply
    82,406.16x = 113,678.64 × 52,140.48
  4. Step 4: Simplify right side
    82,406.16x = 5,927,258,855.35
  5. Step 5: Solve for x
    x = 5,927,258,855.35/82,406.16
  6. Step 6: Final answer
    x = 71,927.38

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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.