Home / 76,518.93-105,590.61-47,851.45

Finding the Fourth Proportional to 76,518.93, 105,590.61 and 47,851.45

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Solution

The fourth proportional to 76,518.93, 105,590.61 and 47,851.45 is: 66,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,518.93 : 105,590.61 = 47,851.45 : x
  2. Step 2: Convert to fraction form
    76,518.93/105,590.61 = 47,851.45/x
  3. Step 3: Cross multiply
    76,518.93x = 105,590.61 × 47,851.45
  4. Step 4: Simplify right side
    76,518.93x = 5,052,663,794.88
  5. Step 5: Solve for x
    x = 5,052,663,794.88/76,518.93
  6. Step 6: Final answer
    x = 66,031.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.