Home / 81,016.32-111,802.08-45,206.28

Finding the Fourth Proportional to 81,016.32, 111,802.08 and 45,206.28

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Solution

The fourth proportional to 81,016.32, 111,802.08 and 45,206.28 is: 62,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,016.32 : 111,802.08 = 45,206.28 : x
  2. Step 2: Convert to fraction form
    81,016.32/111,802.08 = 45,206.28/x
  3. Step 3: Cross multiply
    81,016.32x = 111,802.08 × 45,206.28
  4. Step 4: Simplify right side
    81,016.32x = 5,054,156,133.06
  5. Step 5: Solve for x
    x = 5,054,156,133.06/81,016.32
  6. Step 6: Final answer
    x = 62,384.42

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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.