Home / 93,113.90-128,511.02-54,861.22

Finding the Fourth Proportional to 93,113.90, 128,511.02 and 54,861.22

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Solution

The fourth proportional to 93,113.90, 128,511.02 and 54,861.22 is: 75,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,113.90 : 128,511.02 = 54,861.22 : x
  2. Step 2: Convert to fraction form
    93,113.90/128,511.02 = 54,861.22/x
  3. Step 3: Cross multiply
    93,113.90x = 128,511.02 × 54,861.22
  4. Step 4: Simplify right side
    93,113.90x = 7,050,270,745.06
  5. Step 5: Solve for x
    x = 7,050,270,745.06/93,113.90
  6. Step 6: Final answer
    x = 75,716.63

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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.