Home / 52,117.80-78,176.76-12,674.64

Finding the Fourth Proportional to 52,117.80, 78,176.76 and 12,674.64

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Solution

The fourth proportional to 52,117.80, 78,176.76 and 12,674.64 is: 19,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,117.80 : 78,176.76 = 12,674.64 : x
  2. Step 2: Convert to fraction form
    52,117.80/78,176.76 = 12,674.64/x
  3. Step 3: Cross multiply
    52,117.80x = 78,176.76 × 12,674.64
  4. Step 4: Simplify right side
    52,117.80x = 990,862,289.37
  5. Step 5: Solve for x
    x = 990,862,289.37/52,117.80
  6. Step 6: Final answer
    x = 19,011.97

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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.