Home / 91,970.30-126,915.37-56,220.14

Finding the Fourth Proportional to 91,970.30, 126,915.37 and 56,220.14

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Solution

The fourth proportional to 91,970.30, 126,915.37 and 56,220.14 is: 77,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,970.30 : 126,915.37 = 56,220.14 : x
  2. Step 2: Convert to fraction form
    91,970.30/126,915.37 = 56,220.14/x
  3. Step 3: Cross multiply
    91,970.30x = 126,915.37 × 56,220.14
  4. Step 4: Simplify right side
    91,970.30x = 7,135,199,869.55
  5. Step 5: Solve for x
    x = 7,135,199,869.55/91,970.30
  6. Step 6: Final answer
    x = 77,581.57

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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.