Home / 76,807.48-115,107.54-39,897.40

Finding the Fourth Proportional to 76,807.48, 115,107.54 and 39,897.40

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Solution

The fourth proportional to 76,807.48, 115,107.54 and 39,897.40 is: 59,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,807.48 : 115,107.54 = 39,897.40 : x
  2. Step 2: Convert to fraction form
    76,807.48/115,107.54 = 39,897.40/x
  3. Step 3: Cross multiply
    76,807.48x = 115,107.54 × 39,897.40
  4. Step 4: Simplify right side
    76,807.48x = 4,592,491,566.40
  5. Step 5: Solve for x
    x = 4,592,491,566.40/76,807.48
  6. Step 6: Final answer
    x = 59,792.24

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1.5x scale

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.