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Finding the Fourth Proportional to 93,088.81, 128,472.06 and 54,860.23

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Solution

The fourth proportional to 93,088.81, 128,472.06 and 54,860.23 is: 75,712.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,088.81 : 128,472.06 = 54,860.23 : x
  2. Step 2: Convert to fraction form
    93,088.81/128,472.06 = 54,860.23/x
  3. Step 3: Cross multiply
    93,088.81x = 128,472.06 × 54,860.23
  4. Step 4: Simplify right side
    93,088.81x = 7,048,006,760.17
  5. Step 5: Solve for x
    x = 7,048,006,760.17/93,088.81
  6. Step 6: Final answer
    x = 75,712.72

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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.