Home / 70,543.35-105,774.93-54,527.22

Finding the Fourth Proportional to 70,543.35, 105,774.93 and 54,527.22

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Solution

The fourth proportional to 70,543.35, 105,774.93 and 54,527.22 is: 81,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,543.35 : 105,774.93 = 54,527.22 : x
  2. Step 2: Convert to fraction form
    70,543.35/105,774.93 = 54,527.22/x
  3. Step 3: Cross multiply
    70,543.35x = 105,774.93 × 54,527.22
  4. Step 4: Simplify right side
    70,543.35x = 5,767,612,878.59
  5. Step 5: Solve for x
    x = 5,767,612,878.59/70,543.35
  6. Step 6: Final answer
    x = 81,759.84

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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.