Home / 45,011.68-67,510.42-28,320.62

Finding the Fourth Proportional to 45,011.68, 67,510.42 and 28,320.62

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Solution

The fourth proportional to 45,011.68, 67,510.42 and 28,320.62 is: 42,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,011.68 : 67,510.42 = 28,320.62 : x
  2. Step 2: Convert to fraction form
    45,011.68/67,510.42 = 28,320.62/x
  3. Step 3: Cross multiply
    45,011.68x = 67,510.42 × 28,320.62
  4. Step 4: Simplify right side
    45,011.68x = 1,911,936,950.86
  5. Step 5: Solve for x
    x = 1,911,936,950.86/45,011.68
  6. Step 6: Final answer
    x = 42,476.46

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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.