Home / 286,036.07-429,123.47-86,344.52

Finding the Fourth Proportional to 286,036.07, 429,123.47 and 86,344.52

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Solution

The fourth proportional to 286,036.07, 429,123.47 and 86,344.52 is: 129,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,036.07 : 429,123.47 = 86,344.52 : x
  2. Step 2: Convert to fraction form
    286,036.07/429,123.47 = 86,344.52/x
  3. Step 3: Cross multiply
    286,036.07x = 429,123.47 × 86,344.52
  4. Step 4: Simplify right side
    286,036.07x = 37,052,460,678.97
  5. Step 5: Solve for x
    x = 37,052,460,678.97/286,036.07
  6. Step 6: Final answer
    x = 129,537.72

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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.