Home / 77,434.40-116,190-30,686.24

Finding the Fourth Proportional to 77,434.40, 116,190 and 30,686.24

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Solution

The fourth proportional to 77,434.40, 116,190 and 30,686.24 is: 46,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,434.40 : 116,190 = 30,686.24 : x
  2. Step 2: Convert to fraction form
    77,434.40/116,190 = 30,686.24/x
  3. Step 3: Cross multiply
    77,434.40x = 116,190 × 30,686.24
  4. Step 4: Simplify right side
    77,434.40x = 3,565,434,225.60
  5. Step 5: Solve for x
    x = 3,565,434,225.60/77,434.40
  6. Step 6: Final answer
    x = 46,044.58

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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.