Home / 85,902.07-128,714.59-46,477.75

Finding the Fourth Proportional to 85,902.07, 128,714.59 and 46,477.75

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Solution

The fourth proportional to 85,902.07, 128,714.59 and 46,477.75 is: 69,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,902.07 : 128,714.59 = 46,477.75 : x
  2. Step 2: Convert to fraction form
    85,902.07/128,714.59 = 46,477.75/x
  3. Step 3: Cross multiply
    85,902.07x = 128,714.59 × 46,477.75
  4. Step 4: Simplify right side
    85,902.07x = 5,982,364,535.37
  5. Step 5: Solve for x
    x = 5,982,364,535.37/85,902.07
  6. Step 6: Final answer
    x = 69,641.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.