Home / 81,618.07-112,632.93-45,808.08

Finding the Fourth Proportional to 81,618.07, 112,632.93 and 45,808.08

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Solution

The fourth proportional to 81,618.07, 112,632.93 and 45,808.08 is: 63,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,618.07 : 112,632.93 = 45,808.08 : x
  2. Step 2: Convert to fraction form
    81,618.07/112,632.93 = 45,808.08/x
  3. Step 3: Cross multiply
    81,618.07x = 112,632.93 × 45,808.08
  4. Step 4: Simplify right side
    81,618.07x = 5,159,497,704.91
  5. Step 5: Solve for x
    x = 5,159,497,704.91/81,618.07
  6. Step 6: Final answer
    x = 63,215.14

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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.