Home / 81,032.16-111,798.72-55,896.24

Finding the Fourth Proportional to 81,032.16, 111,798.72 and 55,896.24

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Solution

The fourth proportional to 81,032.16, 111,798.72 and 55,896.24 is: 77,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,032.16 : 111,798.72 = 55,896.24 : x
  2. Step 2: Convert to fraction form
    81,032.16/111,798.72 = 55,896.24/x
  3. Step 3: Cross multiply
    81,032.16x = 111,798.72 × 55,896.24
  4. Step 4: Simplify right side
    81,032.16x = 6,249,128,084.81
  5. Step 5: Solve for x
    x = 6,249,128,084.81/81,032.16
  6. Step 6: Final answer
    x = 77,119.11

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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.