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Finding the Fourth Proportional to 93,434.29, 128,894.48 and 61,154.70

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Solution

The fourth proportional to 93,434.29, 128,894.48 and 61,154.70 is: 84,364.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,434.29 : 128,894.48 = 61,154.70 : x
  2. Step 2: Convert to fraction form
    93,434.29/128,894.48 = 61,154.70/x
  3. Step 3: Cross multiply
    93,434.29x = 128,894.48 × 61,154.70
  4. Step 4: Simplify right side
    93,434.29x = 7,882,503,187.84
  5. Step 5: Solve for x
    x = 7,882,503,187.84/93,434.29
  6. Step 6: Final answer
    x = 84,364.13

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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.