Home / 82,744.08-124,127.64-30,178.32

Finding the Fourth Proportional to 82,744.08, 124,127.64 and 30,178.32

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Solution

The fourth proportional to 82,744.08, 124,127.64 and 30,178.32 is: 45,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,744.08 : 124,127.64 = 30,178.32 : x
  2. Step 2: Convert to fraction form
    82,744.08/124,127.64 = 30,178.32/x
  3. Step 3: Cross multiply
    82,744.08x = 124,127.64 × 30,178.32
  4. Step 4: Simplify right side
    82,744.08x = 3,745,963,640.76
  5. Step 5: Solve for x
    x = 3,745,963,640.76/82,744.08
  6. Step 6: Final answer
    x = 45,271.68

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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.