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Finding the Fourth Proportional to 96,420.66, 133,063.29 and 53,978.94

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Solution

The fourth proportional to 96,420.66, 133,063.29 and 53,978.94 is: 74,492.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,420.66 : 133,063.29 = 53,978.94 : x
  2. Step 2: Convert to fraction form
    96,420.66/133,063.29 = 53,978.94/x
  3. Step 3: Cross multiply
    96,420.66x = 133,063.29 × 53,978.94
  4. Step 4: Simplify right side
    96,420.66x = 7,182,615,347.11
  5. Step 5: Solve for x
    x = 7,182,615,347.11/96,420.66
  6. Step 6: Final answer
    x = 74,492.49

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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.