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Finding the Fourth Proportional to 77,953.20, 116,929.80 and 48,404.40

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Solution

The fourth proportional to 77,953.20, 116,929.80 and 48,404.40 is: 72,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,953.20 : 116,929.80 = 48,404.40 : x
  2. Step 2: Convert to fraction form
    77,953.20/116,929.80 = 48,404.40/x
  3. Step 3: Cross multiply
    77,953.20x = 116,929.80 × 48,404.40
  4. Step 4: Simplify right side
    77,953.20x = 5,659,916,811.12
  5. Step 5: Solve for x
    x = 5,659,916,811.12/77,953.20
  6. Step 6: Final answer
    x = 72,606.60

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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.