Home / 81,801.22-112,886.73-45,989.14

Finding the Fourth Proportional to 81,801.22, 112,886.73 and 45,989.14

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Solution

The fourth proportional to 81,801.22, 112,886.73 and 45,989.14 is: 63,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,801.22 : 112,886.73 = 45,989.14 : x
  2. Step 2: Convert to fraction form
    81,801.22/112,886.73 = 45,989.14/x
  3. Step 3: Cross multiply
    81,801.22x = 112,886.73 × 45,989.14
  4. Step 4: Simplify right side
    81,801.22x = 5,191,563,630.11
  5. Step 5: Solve for x
    x = 5,191,563,630.11/81,801.22
  6. Step 6: Final answer
    x = 63,465.60

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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.