Home / 86,943.42-130,326.90-49,425.98

Finding the Fourth Proportional to 86,943.42, 130,326.90 and 49,425.98

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Solution

The fourth proportional to 86,943.42, 130,326.90 and 49,425.98 is: 74,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943.42 : 130,326.90 = 49,425.98 : x
  2. Step 2: Convert to fraction form
    86,943.42/130,326.90 = 49,425.98/x
  3. Step 3: Cross multiply
    86,943.42x = 130,326.90 × 49,425.98
  4. Step 4: Simplify right side
    86,943.42x = 6,441,534,752.86
  5. Step 5: Solve for x
    x = 6,441,534,752.86/86,943.42
  6. Step 6: Final answer
    x = 74,088.81

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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.