Home / 51,429.60-77,095.80-30,385.80

Finding the Fourth Proportional to 51,429.60, 77,095.80 and 30,385.80

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Solution

The fourth proportional to 51,429.60, 77,095.80 and 30,385.80 is: 45,549.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,429.60 : 77,095.80 = 30,385.80 : x
  2. Step 2: Convert to fraction form
    51,429.60/77,095.80 = 30,385.80/x
  3. Step 3: Cross multiply
    51,429.60x = 77,095.80 × 30,385.80
  4. Step 4: Simplify right side
    51,429.60x = 2,342,617,559.64
  5. Step 5: Solve for x
    x = 2,342,617,559.64/51,429.60
  6. Step 6: Final answer
    x = 45,549.99

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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.