Home / 77,457.07-116,173.45-21,301.39

Finding the Fourth Proportional to 77,457.07, 116,173.45 and 21,301.39

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Solution

The fourth proportional to 77,457.07, 116,173.45 and 21,301.39 is: 31,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,457.07 : 116,173.45 = 21,301.39 : x
  2. Step 2: Convert to fraction form
    77,457.07/116,173.45 = 21,301.39/x
  3. Step 3: Cross multiply
    77,457.07x = 116,173.45 × 21,301.39
  4. Step 4: Simplify right side
    77,457.07x = 2,474,655,966.10
  5. Step 5: Solve for x
    x = 2,474,655,966.10/77,457.07
  6. Step 6: Final answer
    x = 31,948.74

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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.