Home / 81,254.19-112,141.36-45,451.63

Finding the Fourth Proportional to 81,254.19, 112,141.36 and 45,451.63

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Solution

The fourth proportional to 81,254.19, 112,141.36 and 45,451.63 is: 62,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254.19 : 112,141.36 = 45,451.63 : x
  2. Step 2: Convert to fraction form
    81,254.19/112,141.36 = 45,451.63/x
  3. Step 3: Cross multiply
    81,254.19x = 112,141.36 × 45,451.63
  4. Step 4: Simplify right side
    81,254.19x = 5,097,007,602.42
  5. Step 5: Solve for x
    x = 5,097,007,602.42/81,254.19
  6. Step 6: Final answer
    x = 62,729.17

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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.