Home / 45,011.18-67,509.68-28,320.12

Finding the Fourth Proportional to 45,011.18, 67,509.68 and 28,320.12

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Solution

The fourth proportional to 45,011.18, 67,509.68 and 28,320.12 is: 42,475.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,011.18 : 67,509.68 = 28,320.12 : x
  2. Step 2: Convert to fraction form
    45,011.18/67,509.68 = 28,320.12/x
  3. Step 3: Cross multiply
    45,011.18x = 67,509.68 × 28,320.12
  4. Step 4: Simplify right side
    45,011.18x = 1,911,882,097.16
  5. Step 5: Solve for x
    x = 1,911,882,097.16/45,011.18
  6. Step 6: Final answer
    x = 42,475.72

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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.