Home / 81,048.90-121,547.05-26,999.22

Finding the Fourth Proportional to 81,048.90, 121,547.05 and 26,999.22

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Solution

The fourth proportional to 81,048.90, 121,547.05 and 26,999.22 is: 40,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,048.90 : 121,547.05 = 26,999.22 : x
  2. Step 2: Convert to fraction form
    81,048.90/121,547.05 = 26,999.22/x
  3. Step 3: Cross multiply
    81,048.90x = 121,547.05 × 26,999.22
  4. Step 4: Simplify right side
    81,048.90x = 3,281,675,543.30
  5. Step 5: Solve for x
    x = 3,281,675,543.30/81,048.90
  6. Step 6: Final answer
    x = 40,490.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.