Home / 101,781.04-140,460.09-56,457.55

Finding the Fourth Proportional to 101,781.04, 140,460.09 and 56,457.55

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Solution

The fourth proportional to 101,781.04, 140,460.09 and 56,457.55 is: 77,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,781.04 : 140,460.09 = 56,457.55 : x
  2. Step 2: Convert to fraction form
    101,781.04/140,460.09 = 56,457.55/x
  3. Step 3: Cross multiply
    101,781.04x = 140,460.09 × 56,457.55
  4. Step 4: Simplify right side
    101,781.04x = 7,930,032,554.18
  5. Step 5: Solve for x
    x = 7,930,032,554.18/101,781.04
  6. Step 6: Final answer
    x = 77,912.67

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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.