Home / 52,019.62-78,010.29-18,730.74

Finding the Fourth Proportional to 52,019.62, 78,010.29 and 18,730.74

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Solution

The fourth proportional to 52,019.62, 78,010.29 and 18,730.74 is: 28,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.62 : 78,010.29 = 18,730.74 : x
  2. Step 2: Convert to fraction form
    52,019.62/78,010.29 = 18,730.74/x
  3. Step 3: Cross multiply
    52,019.62x = 78,010.29 × 18,730.74
  4. Step 4: Simplify right side
    52,019.62x = 1,461,190,751.85
  5. Step 5: Solve for x
    x = 1,461,190,751.85/52,019.62
  6. Step 6: Final answer
    x = 28,089.23

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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.