Home / 65,705.95-90,677.56-40,204.31

Finding the Fourth Proportional to 65,705.95, 90,677.56 and 40,204.31

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Solution

The fourth proportional to 65,705.95, 90,677.56 and 40,204.31 is: 55,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,705.95 : 90,677.56 = 40,204.31 : x
  2. Step 2: Convert to fraction form
    65,705.95/90,677.56 = 40,204.31/x
  3. Step 3: Cross multiply
    65,705.95x = 90,677.56 × 40,204.31
  4. Step 4: Simplify right side
    65,705.95x = 3,645,628,763.83
  5. Step 5: Solve for x
    x = 3,645,628,763.83/65,705.95
  6. Step 6: Final answer
    x = 55,484.00

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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.