Home / 77,427.61-106,857.17-47,214.61

Finding the Fourth Proportional to 77,427.61, 106,857.17 and 47,214.61

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Solution

The fourth proportional to 77,427.61, 106,857.17 and 47,214.61 is: 65,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,427.61 : 106,857.17 = 47,214.61 : x
  2. Step 2: Convert to fraction form
    77,427.61/106,857.17 = 47,214.61/x
  3. Step 3: Cross multiply
    77,427.61x = 106,857.17 × 47,214.61
  4. Step 4: Simplify right side
    77,427.61x = 5,045,219,607.25
  5. Step 5: Solve for x
    x = 5,045,219,607.25/77,427.61
  6. Step 6: Final answer
    x = 65,160.47

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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.