Home / 93,120.18-128,508.58-50,681.46

Finding the Fourth Proportional to 93,120.18, 128,508.58 and 50,681.46

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Solution

The fourth proportional to 93,120.18, 128,508.58 and 50,681.46 is: 69,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,120.18 : 128,508.58 = 50,681.46 : x
  2. Step 2: Convert to fraction form
    93,120.18/128,508.58 = 50,681.46/x
  3. Step 3: Cross multiply
    93,120.18x = 128,508.58 × 50,681.46
  4. Step 4: Simplify right side
    93,120.18x = 6,513,002,456.93
  5. Step 5: Solve for x
    x = 6,513,002,456.93/93,120.18
  6. Step 6: Final answer
    x = 69,941.90

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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.