Home / 93,454.17-128,951.55-55,208.40

Finding the Fourth Proportional to 93,454.17, 128,951.55 and 55,208.40

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Solution

The fourth proportional to 93,454.17, 128,951.55 and 55,208.40 is: 76,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,454.17 : 128,951.55 = 55,208.40 : x
  2. Step 2: Convert to fraction form
    93,454.17/128,951.55 = 55,208.40/x
  3. Step 3: Cross multiply
    93,454.17x = 128,951.55 × 55,208.40
  4. Step 4: Simplify right side
    93,454.17x = 7,119,208,753.02
  5. Step 5: Solve for x
    x = 7,119,208,753.02/93,454.17
  6. Step 6: Final answer
    x = 76,178.61

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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.