Home / 89,059.45-122,985.30-57,283.51

Finding the Fourth Proportional to 89,059.45, 122,985.30 and 57,283.51

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Solution

The fourth proportional to 89,059.45, 122,985.30 and 57,283.51 is: 79,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,059.45 : 122,985.30 = 57,283.51 : x
  2. Step 2: Convert to fraction form
    89,059.45/122,985.30 = 57,283.51/x
  3. Step 3: Cross multiply
    89,059.45x = 122,985.30 × 57,283.51
  4. Step 4: Simplify right side
    89,059.45x = 7,045,029,662.40
  5. Step 5: Solve for x
    x = 7,045,029,662.40/89,059.45
  6. Step 6: Final answer
    x = 79,104.80

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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.