Home / 45,870.39-68,798.19-12,582.72

Finding the Fourth Proportional to 45,870.39, 68,798.19 and 12,582.72

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Solution

The fourth proportional to 45,870.39, 68,798.19 and 12,582.72 is: 18,872.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,870.39 : 68,798.19 = 12,582.72 : x
  2. Step 2: Convert to fraction form
    45,870.39/68,798.19 = 12,582.72/x
  3. Step 3: Cross multiply
    45,870.39x = 68,798.19 × 12,582.72
  4. Step 4: Simplify right side
    45,870.39x = 865,668,361.28
  5. Step 5: Solve for x
    x = 865,668,361.28/45,870.39
  6. Step 6: Final answer
    x = 18,872.05

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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.