Home / 93,127.81-128,516.38-50,686.65

Finding the Fourth Proportional to 93,127.81, 128,516.38 and 50,686.65

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Solution

The fourth proportional to 93,127.81, 128,516.38 and 50,686.65 is: 69,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,127.81 : 128,516.38 = 50,686.65 : x
  2. Step 2: Convert to fraction form
    93,127.81/128,516.38 = 50,686.65/x
  3. Step 3: Cross multiply
    93,127.81x = 128,516.38 × 50,686.65
  4. Step 4: Simplify right side
    93,127.81x = 6,514,064,772.33
  5. Step 5: Solve for x
    x = 6,514,064,772.33/93,127.81
  6. Step 6: Final answer
    x = 69,947.58

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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.