Home / 81,112.98-111,935.68-45,303.02

Finding the Fourth Proportional to 81,112.98, 111,935.68 and 45,303.02

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Solution

The fourth proportional to 81,112.98, 111,935.68 and 45,303.02 is: 62,518.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,112.98 : 111,935.68 = 45,303.02 : x
  2. Step 2: Convert to fraction form
    81,112.98/111,935.68 = 45,303.02/x
  3. Step 3: Cross multiply
    81,112.98x = 111,935.68 × 45,303.02
  4. Step 4: Simplify right side
    81,112.98x = 5,071,024,349.75
  5. Step 5: Solve for x
    x = 5,071,024,349.75/81,112.98
  6. Step 6: Final answer
    x = 62,518.04

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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.