Home / 56,143.84-84,145.24-28,071.72

Finding the Fourth Proportional to 56,143.84, 84,145.24 and 28,071.72

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Solution

The fourth proportional to 56,143.84, 84,145.24 and 28,071.72 is: 42,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,143.84 : 84,145.24 = 28,071.72 : x
  2. Step 2: Convert to fraction form
    56,143.84/84,145.24 = 28,071.72/x
  3. Step 3: Cross multiply
    56,143.84x = 84,145.24 × 28,071.72
  4. Step 4: Simplify right side
    56,143.84x = 2,362,101,616.61
  5. Step 5: Solve for x
    x = 2,362,101,616.61/56,143.84
  6. Step 6: Final answer
    x = 42,072.32

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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.