Home / 93,509.12-129,183.72-61,320.56

Finding the Fourth Proportional to 93,509.12, 129,183.72 and 61,320.56

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Solution

The fourth proportional to 93,509.12, 129,183.72 and 61,320.56 is: 84,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,509.12 : 129,183.72 = 61,320.56 : x
  2. Step 2: Convert to fraction form
    93,509.12/129,183.72 = 61,320.56/x
  3. Step 3: Cross multiply
    93,509.12x = 129,183.72 × 61,320.56
  4. Step 4: Simplify right side
    93,509.12x = 7,921,618,053.28
  5. Step 5: Solve for x
    x = 7,921,618,053.28/93,509.12
  6. Step 6: Final answer
    x = 84,714.92

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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.