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Finding the Fourth Proportional to 48,779.40, 73,322.70 and 47,857.80

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Solution

The fourth proportional to 48,779.40, 73,322.70 and 47,857.80 is: 71,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,779.40 : 73,322.70 = 47,857.80 : x
  2. Step 2: Convert to fraction form
    48,779.40/73,322.70 = 47,857.80/x
  3. Step 3: Cross multiply
    48,779.40x = 73,322.70 × 47,857.80
  4. Step 4: Simplify right side
    48,779.40x = 3,509,063,112.06
  5. Step 5: Solve for x
    x = 3,509,063,112.06/48,779.40
  6. Step 6: Final answer
    x = 71,937.40

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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.