Home / 56,000.39-77,280.53-30,849.89

Finding the Fourth Proportional to 56,000.39, 77,280.53 and 30,849.89

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Solution

The fourth proportional to 56,000.39, 77,280.53 and 30,849.89 is: 42,572.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.39 : 77,280.53 = 30,849.89 : x
  2. Step 2: Convert to fraction form
    56,000.39/77,280.53 = 30,849.89/x
  3. Step 3: Cross multiply
    56,000.39x = 77,280.53 × 30,849.89
  4. Step 4: Simplify right side
    56,000.39x = 2,384,095,308.99
  5. Step 5: Solve for x
    x = 2,384,095,308.99/56,000.39
  6. Step 6: Final answer
    x = 42,572.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.