Home / 76,284.91-105,276.77-47,621.55

Finding the Fourth Proportional to 76,284.91, 105,276.77 and 47,621.55

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Solution

The fourth proportional to 76,284.91, 105,276.77 and 47,621.55 is: 65,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,284.91 : 105,276.77 = 47,621.55 : x
  2. Step 2: Convert to fraction form
    76,284.91/105,276.77 = 47,621.55/x
  3. Step 3: Cross multiply
    76,284.91x = 105,276.77 × 47,621.55
  4. Step 4: Simplify right side
    76,284.91x = 5,013,442,966.39
  5. Step 5: Solve for x
    x = 5,013,442,966.39/76,284.91
  6. Step 6: Final answer
    x = 65,719.98

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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.