Home / 85,858.47-118,484.69-48,132.72

Finding the Fourth Proportional to 85,858.47, 118,484.69 and 48,132.72

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Solution

The fourth proportional to 85,858.47, 118,484.69 and 48,132.72 is: 66,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,858.47 : 118,484.69 = 48,132.72 : x
  2. Step 2: Convert to fraction form
    85,858.47/118,484.69 = 48,132.72/x
  3. Step 3: Cross multiply
    85,858.47x = 118,484.69 × 48,132.72
  4. Step 4: Simplify right side
    85,858.47x = 5,702,990,408.06
  5. Step 5: Solve for x
    x = 5,702,990,408.06/85,858.47
  6. Step 6: Final answer
    x = 66,423.15

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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.