Home / 52,080.18-78,120.40-18,823.74

Finding the Fourth Proportional to 52,080.18, 78,120.40 and 18,823.74

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Solution

The fourth proportional to 52,080.18, 78,120.40 and 18,823.74 is: 28,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.18 : 78,120.40 = 18,823.74 : x
  2. Step 2: Convert to fraction form
    52,080.18/78,120.40 = 18,823.74/x
  3. Step 3: Cross multiply
    52,080.18x = 78,120.40 × 18,823.74
  4. Step 4: Simplify right side
    52,080.18x = 1,470,518,098.30
  5. Step 5: Solve for x
    x = 1,470,518,098.30/52,080.18
  6. Step 6: Final answer
    x = 28,235.66

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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.