Home / 86,389.67-119,218.94-48,148.16

Finding the Fourth Proportional to 86,389.67, 119,218.94 and 48,148.16

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Solution

The fourth proportional to 86,389.67, 119,218.94 and 48,148.16 is: 66,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.67 : 119,218.94 = 48,148.16 : x
  2. Step 2: Convert to fraction form
    86,389.67/119,218.94 = 48,148.16/x
  3. Step 3: Cross multiply
    86,389.67x = 119,218.94 × 48,148.16
  4. Step 4: Simplify right side
    86,389.67x = 5,740,171,941.87
  5. Step 5: Solve for x
    x = 5,740,171,941.87/86,389.67
  6. Step 6: Final answer
    x = 66,445.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.