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Finding the Fourth Proportional to 77,495.64, 106,608.40 and 67,892.28

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Solution

The fourth proportional to 77,495.64, 106,608.40 and 67,892.28 is: 93,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,495.64 : 106,608.40 = 67,892.28 : x
  2. Step 2: Convert to fraction form
    77,495.64/106,608.40 = 67,892.28/x
  3. Step 3: Cross multiply
    77,495.64x = 106,608.40 × 67,892.28
  4. Step 4: Simplify right side
    77,495.64x = 7,237,887,343.15
  5. Step 5: Solve for x
    x = 7,237,887,343.15/77,495.64
  6. Step 6: Final answer
    x = 93,397.35

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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.