Home / 47,420.40-71,130.60-43,618.80

Finding the Fourth Proportional to 47,420.40, 71,130.60 and 43,618.80

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Solution

The fourth proportional to 47,420.40, 71,130.60 and 43,618.80 is: 65,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.40 : 71,130.60 = 43,618.80 : x
  2. Step 2: Convert to fraction form
    47,420.40/71,130.60 = 43,618.80/x
  3. Step 3: Cross multiply
    47,420.40x = 71,130.60 × 43,618.80
  4. Step 4: Simplify right side
    47,420.40x = 3,102,631,415.28
  5. Step 5: Solve for x
    x = 3,102,631,415.28/47,420.40
  6. Step 6: Final answer
    x = 65,428.20

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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.