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Finding the Fourth Proportional to 47,373.60, 70,966.80 and 30,745.20

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Solution

The fourth proportional to 47,373.60, 70,966.80 and 30,745.20 is: 46,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,373.60 : 70,966.80 = 30,745.20 : x
  2. Step 2: Convert to fraction form
    47,373.60/70,966.80 = 30,745.20/x
  3. Step 3: Cross multiply
    47,373.60x = 70,966.80 × 30,745.20
  4. Step 4: Simplify right side
    47,373.60x = 2,181,888,459.36
  5. Step 5: Solve for x
    x = 2,181,888,459.36/47,373.60
  6. Step 6: Final answer
    x = 46,057.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.