Home / 77,877.20-116,815.80-48,328.40

Finding the Fourth Proportional to 77,877.20, 116,815.80 and 48,328.40

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Solution

The fourth proportional to 77,877.20, 116,815.80 and 48,328.40 is: 72,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,877.20 : 116,815.80 = 48,328.40 : x
  2. Step 2: Convert to fraction form
    77,877.20/116,815.80 = 48,328.40/x
  3. Step 3: Cross multiply
    77,877.20x = 116,815.80 × 48,328.40
  4. Step 4: Simplify right side
    77,877.20x = 5,645,520,708.72
  5. Step 5: Solve for x
    x = 5,645,520,708.72/77,877.20
  6. Step 6: Final answer
    x = 72,492.60

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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.