Home / 93,013.86-128,131.30-67,445.09

Finding the Fourth Proportional to 93,013.86, 128,131.30 and 67,445.09

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Solution

The fourth proportional to 93,013.86, 128,131.30 and 67,445.09 is: 92,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,013.86 : 128,131.30 = 67,445.09 : x
  2. Step 2: Convert to fraction form
    93,013.86/128,131.30 = 67,445.09/x
  3. Step 3: Cross multiply
    93,013.86x = 128,131.30 × 67,445.09
  4. Step 4: Simplify right side
    93,013.86x = 8,641,826,082.44
  5. Step 5: Solve for x
    x = 8,641,826,082.44/93,013.86
  6. Step 6: Final answer
    x = 92,909.01

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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.