Home / 93,299.16-128,756.34-53,019.78

Finding the Fourth Proportional to 93,299.16, 128,756.34 and 53,019.78

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Solution

The fourth proportional to 93,299.16, 128,756.34 and 53,019.78 is: 73,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,299.16 : 128,756.34 = 53,019.78 : x
  2. Step 2: Convert to fraction form
    93,299.16/128,756.34 = 53,019.78/x
  3. Step 3: Cross multiply
    93,299.16x = 128,756.34 × 53,019.78
  4. Step 4: Simplify right side
    93,299.16x = 6,826,632,820.41
  5. Step 5: Solve for x
    x = 6,826,632,820.41/93,299.16
  6. Step 6: Final answer
    x = 73,169.28

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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.