Home / 45,530.76-68,303.64-14,358.72

Finding the Fourth Proportional to 45,530.76, 68,303.64 and 14,358.72

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Solution

The fourth proportional to 45,530.76, 68,303.64 and 14,358.72 is: 21,540.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,530.76 : 68,303.64 = 14,358.72 : x
  2. Step 2: Convert to fraction form
    45,530.76/68,303.64 = 14,358.72/x
  3. Step 3: Cross multiply
    45,530.76x = 68,303.64 × 14,358.72
  4. Step 4: Simplify right side
    45,530.76x = 980,752,841.74
  5. Step 5: Solve for x
    x = 980,752,841.74/45,530.76
  6. Step 6: Final answer
    x = 21,540.45

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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.