Home / 77,291.23-115,785.87-53,271.24

Finding the Fourth Proportional to 77,291.23, 115,785.87 and 53,271.24

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Solution

The fourth proportional to 77,291.23, 115,785.87 and 53,271.24 is: 79,802.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,291.23 : 115,785.87 = 53,271.24 : x
  2. Step 2: Convert to fraction form
    77,291.23/115,785.87 = 53,271.24/x
  3. Step 3: Cross multiply
    77,291.23x = 115,785.87 × 53,271.24
  4. Step 4: Simplify right side
    77,291.23x = 6,168,056,869.38
  5. Step 5: Solve for x
    x = 6,168,056,869.38/77,291.23
  6. Step 6: Final answer
    x = 79,802.80

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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.