Home / 85,429.84-117,852.28-53,582.80

Finding the Fourth Proportional to 85,429.84, 117,852.28 and 53,582.80

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Solution

The fourth proportional to 85,429.84, 117,852.28 and 53,582.80 is: 73,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,429.84 : 117,852.28 = 53,582.80 : x
  2. Step 2: Convert to fraction form
    85,429.84/117,852.28 = 53,582.80/x
  3. Step 3: Cross multiply
    85,429.84x = 117,852.28 × 53,582.80
  4. Step 4: Simplify right side
    85,429.84x = 6,314,855,148.78
  5. Step 5: Solve for x
    x = 6,314,855,148.78/85,429.84
  6. Step 6: Final answer
    x = 73,918.61

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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.