Home / 47,209.40-70,814.10-42,908.60

Finding the Fourth Proportional to 47,209.40, 70,814.10 and 42,908.60

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Solution

The fourth proportional to 47,209.40, 70,814.10 and 42,908.60 is: 64,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,209.40 : 70,814.10 = 42,908.60 : x
  2. Step 2: Convert to fraction form
    47,209.40/70,814.10 = 42,908.60/x
  3. Step 3: Cross multiply
    47,209.40x = 70,814.10 × 42,908.60
  4. Step 4: Simplify right side
    47,209.40x = 3,038,533,891.26
  5. Step 5: Solve for x
    x = 3,038,533,891.26/47,209.40
  6. Step 6: Final answer
    x = 64,362.90

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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.