Home / 56,154.23-77,493.11-30,661.12

Finding the Fourth Proportional to 56,154.23, 77,493.11 and 30,661.12

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Solution

The fourth proportional to 56,154.23, 77,493.11 and 30,661.12 is: 42,312.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,154.23 : 77,493.11 = 30,661.12 : x
  2. Step 2: Convert to fraction form
    56,154.23/77,493.11 = 30,661.12/x
  3. Step 3: Cross multiply
    56,154.23x = 77,493.11 × 30,661.12
  4. Step 4: Simplify right side
    56,154.23x = 2,376,025,004.11
  5. Step 5: Solve for x
    x = 2,376,025,004.11/56,154.23
  6. Step 6: Final answer
    x = 42,312.48

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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.