Home / 93,429.72-128,936.52-53,147.16

Finding the Fourth Proportional to 93,429.72, 128,936.52 and 53,147.16

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Solution

The fourth proportional to 93,429.72, 128,936.52 and 53,147.16 is: 73,345.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,429.72 : 128,936.52 = 53,147.16 : x
  2. Step 2: Convert to fraction form
    93,429.72/128,936.52 = 53,147.16/x
  3. Step 3: Cross multiply
    93,429.72x = 128,936.52 × 53,147.16
  4. Step 4: Simplify right side
    93,429.72x = 6,852,609,858.28
  5. Step 5: Solve for x
    x = 6,852,609,858.28/93,429.72
  6. Step 6: Final answer
    x = 73,345.08

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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.