Home / 65,031.12-89,743.08-35,223.12

Finding the Fourth Proportional to 65,031.12, 89,743.08 and 35,223.12

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Solution

The fourth proportional to 65,031.12, 89,743.08 and 35,223.12 is: 48,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,031.12 : 89,743.08 = 35,223.12 : x
  2. Step 2: Convert to fraction form
    65,031.12/89,743.08 = 35,223.12/x
  3. Step 3: Cross multiply
    65,031.12x = 89,743.08 × 35,223.12
  4. Step 4: Simplify right side
    65,031.12x = 3,161,031,276.01
  5. Step 5: Solve for x
    x = 3,161,031,276.01/65,031.12
  6. Step 6: Final answer
    x = 48,607.98

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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.