Home / 81,646.11-112,670.70-45,835.20

Finding the Fourth Proportional to 81,646.11, 112,670.70 and 45,835.20

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Solution

The fourth proportional to 81,646.11, 112,670.70 and 45,835.20 is: 63,252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,646.11 : 112,670.70 = 45,835.20 : x
  2. Step 2: Convert to fraction form
    81,646.11/112,670.70 = 45,835.20/x
  3. Step 3: Cross multiply
    81,646.11x = 112,670.70 × 45,835.20
  4. Step 4: Simplify right side
    81,646.11x = 5,164,283,896.76
  5. Step 5: Solve for x
    x = 5,164,283,896.76/81,646.11
  6. Step 6: Final answer
    x = 63,252.05

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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.