Home / 93,108.81-128,480.38-52,809.69

Finding the Fourth Proportional to 93,108.81, 128,480.38 and 52,809.69

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Solution

The fourth proportional to 93,108.81, 128,480.38 and 52,809.69 is: 72,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,108.81 : 128,480.38 = 52,809.69 : x
  2. Step 2: Convert to fraction form
    93,108.81/128,480.38 = 52,809.69/x
  3. Step 3: Cross multiply
    93,108.81x = 128,480.38 × 52,809.69
  4. Step 4: Simplify right side
    93,108.81x = 6,785,009,038.88
  5. Step 5: Solve for x
    x = 6,785,009,038.88/93,108.81
  6. Step 6: Final answer
    x = 72,871.83

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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.