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Finding the Fourth Proportional to 60,804.40, 91,206.60 and 39,809.20

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Solution

The fourth proportional to 60,804.40, 91,206.60 and 39,809.20 is: 59,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,804.40 : 91,206.60 = 39,809.20 : x
  2. Step 2: Convert to fraction form
    60,804.40/91,206.60 = 39,809.20/x
  3. Step 3: Cross multiply
    60,804.40x = 91,206.60 × 39,809.20
  4. Step 4: Simplify right side
    60,804.40x = 3,630,861,780.72
  5. Step 5: Solve for x
    x = 3,630,861,780.72/60,804.40
  6. Step 6: Final answer
    x = 59,713.80

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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.