Home / 93,006.36-128,369.16-61,178.40

Finding the Fourth Proportional to 93,006.36, 128,369.16 and 61,178.40

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Solution

The fourth proportional to 93,006.36, 128,369.16 and 61,178.40 is: 84,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,006.36 : 128,369.16 = 61,178.40 : x
  2. Step 2: Convert to fraction form
    93,006.36/128,369.16 = 61,178.40/x
  3. Step 3: Cross multiply
    93,006.36x = 128,369.16 × 61,178.40
  4. Step 4: Simplify right side
    93,006.36x = 7,853,419,818.14
  5. Step 5: Solve for x
    x = 7,853,419,818.14/93,006.36
  6. Step 6: Final answer
    x = 84,439.60

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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.