Home / 81,812.12-112,898.48-46,001.21

Finding the Fourth Proportional to 81,812.12, 112,898.48 and 46,001.21

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Solution

The fourth proportional to 81,812.12, 112,898.48 and 46,001.21 is: 63,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,812.12 : 112,898.48 = 46,001.21 : x
  2. Step 2: Convert to fraction form
    81,812.12/112,898.48 = 46,001.21/x
  3. Step 3: Cross multiply
    81,812.12x = 112,898.48 × 46,001.21
  4. Step 4: Simplify right side
    81,812.12x = 5,193,465,892.66
  5. Step 5: Solve for x
    x = 5,193,465,892.66/81,812.12
  6. Step 6: Final answer
    x = 63,480.40

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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.