Home / 47,330.40-70,909.20-28,840.80

Finding the Fourth Proportional to 47,330.40, 70,909.20 and 28,840.80

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Solution

The fourth proportional to 47,330.40, 70,909.20 and 28,840.80 is: 43,208.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,330.40 : 70,909.20 = 28,840.80 : x
  2. Step 2: Convert to fraction form
    47,330.40/70,909.20 = 28,840.80/x
  3. Step 3: Cross multiply
    47,330.40x = 70,909.20 × 28,840.80
  4. Step 4: Simplify right side
    47,330.40x = 2,045,078,055.36
  5. Step 5: Solve for x
    x = 2,045,078,055.36/47,330.40
  6. Step 6: Final answer
    x = 43,208.55

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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.