Home / 52,421.93-78,479.12-47,011.15

Finding the Fourth Proportional to 52,421.93, 78,479.12 and 47,011.15

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Solution

The fourth proportional to 52,421.93, 78,479.12 and 47,011.15 is: 70,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,421.93 : 78,479.12 = 47,011.15 : x
  2. Step 2: Convert to fraction form
    52,421.93/78,479.12 = 47,011.15/x
  3. Step 3: Cross multiply
    52,421.93x = 78,479.12 × 47,011.15
  4. Step 4: Simplify right side
    52,421.93x = 3,689,393,250.93
  5. Step 5: Solve for x
    x = 3,689,393,250.93/52,421.93
  6. Step 6: Final answer
    x = 70,378.82

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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.