Home / 47,775.40-65,903.14-28,650.08

Finding the Fourth Proportional to 47,775.40, 65,903.14 and 28,650.08

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Solution

The fourth proportional to 47,775.40, 65,903.14 and 28,650.08 is: 39,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,775.40 : 65,903.14 = 28,650.08 : x
  2. Step 2: Convert to fraction form
    47,775.40/65,903.14 = 28,650.08/x
  3. Step 3: Cross multiply
    47,775.40x = 65,903.14 × 28,650.08
  4. Step 4: Simplify right side
    47,775.40x = 1,888,130,233.25
  5. Step 5: Solve for x
    x = 1,888,130,233.25/47,775.40
  6. Step 6: Final answer
    x = 39,520.97

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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.