Home / 56,120.08-77,443.68-30,969.04

Finding the Fourth Proportional to 56,120.08, 77,443.68 and 30,969.04

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Solution

The fourth proportional to 56,120.08, 77,443.68 and 30,969.04 is: 42,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,120.08 : 77,443.68 = 30,969.04 : x
  2. Step 2: Convert to fraction form
    56,120.08/77,443.68 = 30,969.04/x
  3. Step 3: Cross multiply
    56,120.08x = 77,443.68 × 30,969.04
  4. Step 4: Simplify right side
    56,120.08x = 2,398,356,423.67
  5. Step 5: Solve for x
    x = 2,398,356,423.67/56,120.08
  6. Step 6: Final answer
    x = 42,736.15

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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.