Home / 93,218.67-128,708.06-57,419.91

Finding the Fourth Proportional to 93,218.67, 128,708.06 and 57,419.91

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Solution

The fourth proportional to 93,218.67, 128,708.06 and 57,419.91 is: 79,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,218.67 : 128,708.06 = 57,419.91 : x
  2. Step 2: Convert to fraction form
    93,218.67/128,708.06 = 57,419.91/x
  3. Step 3: Cross multiply
    93,218.67x = 128,708.06 × 57,419.91
  4. Step 4: Simplify right side
    93,218.67x = 7,390,404,934.38
  5. Step 5: Solve for x
    x = 7,390,404,934.38/93,218.67
  6. Step 6: Final answer
    x = 79,280.31

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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.