Home / 45,045.68-67,565.76-13,455.84

Finding the Fourth Proportional to 45,045.68, 67,565.76 and 13,455.84

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Solution

The fourth proportional to 45,045.68, 67,565.76 and 13,455.84 is: 20,182.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,045.68 : 67,565.76 = 13,455.84 : x
  2. Step 2: Convert to fraction form
    45,045.68/67,565.76 = 13,455.84/x
  3. Step 3: Cross multiply
    45,045.68x = 67,565.76 × 13,455.84
  4. Step 4: Simplify right side
    45,045.68x = 909,154,056.04
  5. Step 5: Solve for x
    x = 909,154,056.04/45,045.68
  6. Step 6: Final answer
    x = 20,182.94

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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.