Home / 85,211.47-117,592.64-46,971.78

Finding the Fourth Proportional to 85,211.47, 117,592.64 and 46,971.78

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Solution

The fourth proportional to 85,211.47, 117,592.64 and 46,971.78 is: 64,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,211.47 : 117,592.64 = 46,971.78 : x
  2. Step 2: Convert to fraction form
    85,211.47/117,592.64 = 46,971.78/x
  3. Step 3: Cross multiply
    85,211.47x = 117,592.64 × 46,971.78
  4. Step 4: Simplify right side
    85,211.47x = 5,523,535,615.70
  5. Step 5: Solve for x
    x = 5,523,535,615.70/85,211.47
  6. Step 6: Final answer
    x = 64,821.50

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1.5x scale

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.