Home / 93,432.18-128,932.38-53,140.26

Finding the Fourth Proportional to 93,432.18, 128,932.38 and 53,140.26

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Solution

The fourth proportional to 93,432.18, 128,932.38 and 53,140.26 is: 73,331.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,432.18 : 128,932.38 = 53,140.26 : x
  2. Step 2: Convert to fraction form
    93,432.18/128,932.38 = 53,140.26/x
  3. Step 3: Cross multiply
    93,432.18x = 128,932.38 × 53,140.26
  4. Step 4: Simplify right side
    93,432.18x = 6,851,500,195.62
  5. Step 5: Solve for x
    x = 6,851,500,195.62/93,432.18
  6. Step 6: Final answer
    x = 73,331.27

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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.