Home / 70,128.24-96,830.64-46,288.80

Finding the Fourth Proportional to 70,128.24, 96,830.64 and 46,288.80

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Solution

The fourth proportional to 70,128.24, 96,830.64 and 46,288.80 is: 63,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,128.24 : 96,830.64 = 46,288.80 : x
  2. Step 2: Convert to fraction form
    70,128.24/96,830.64 = 46,288.80/x
  3. Step 3: Cross multiply
    70,128.24x = 96,830.64 × 46,288.80
  4. Step 4: Simplify right side
    70,128.24x = 4,482,174,128.83
  5. Step 5: Solve for x
    x = 4,482,174,128.83/70,128.24
  6. Step 6: Final answer
    x = 63,913.97

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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.