Home / 93,449.10-128,954.64-51,006.72

Finding the Fourth Proportional to 93,449.10, 128,954.64 and 51,006.72

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Solution

The fourth proportional to 93,449.10, 128,954.64 and 51,006.72 is: 70,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,449.10 : 128,954.64 = 51,006.72 : x
  2. Step 2: Convert to fraction form
    93,449.10/128,954.64 = 51,006.72/x
  3. Step 3: Cross multiply
    93,449.10x = 128,954.64 × 51,006.72
  4. Step 4: Simplify right side
    93,449.10x = 6,577,553,215.18
  5. Step 5: Solve for x
    x = 6,577,553,215.18/93,449.10
  6. Step 6: Final answer
    x = 70,386.48

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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.