Home / 85,420.26-117,688.14-59,554.80

Finding the Fourth Proportional to 85,420.26, 117,688.14 and 59,554.80

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Solution

The fourth proportional to 85,420.26, 117,688.14 and 59,554.80 is: 82,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,420.26 : 117,688.14 = 59,554.80 : x
  2. Step 2: Convert to fraction form
    85,420.26/117,688.14 = 59,554.80/x
  3. Step 3: Cross multiply
    85,420.26x = 117,688.14 × 59,554.80
  4. Step 4: Simplify right side
    85,420.26x = 7,008,893,640.07
  5. Step 5: Solve for x
    x = 7,008,893,640.07/85,420.26
  6. Step 6: Final answer
    x = 82,051.89

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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.