Home / 65,856.24-90,851.76-40,353.12

Finding the Fourth Proportional to 65,856.24, 90,851.76 and 40,353.12

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Solution

The fourth proportional to 65,856.24, 90,851.76 and 40,353.12 is: 55,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,856.24 : 90,851.76 = 40,353.12 : x
  2. Step 2: Convert to fraction form
    65,856.24/90,851.76 = 40,353.12/x
  3. Step 3: Cross multiply
    65,856.24x = 90,851.76 × 40,353.12
  4. Step 4: Simplify right side
    65,856.24x = 3,666,151,973.49
  5. Step 5: Solve for x
    x = 3,666,151,973.49/65,856.24
  6. Step 6: Final answer
    x = 55,669.01

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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.