Home / 65,854.07-90,878.84-35,639.39

Finding the Fourth Proportional to 65,854.07, 90,878.84 and 35,639.39

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Solution

The fourth proportional to 65,854.07, 90,878.84 and 35,639.39 is: 49,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,854.07 : 90,878.84 = 35,639.39 : x
  2. Step 2: Convert to fraction form
    65,854.07/90,878.84 = 35,639.39/x
  3. Step 3: Cross multiply
    65,854.07x = 90,878.84 × 35,639.39
  4. Step 4: Simplify right side
    65,854.07x = 3,238,865,788.92
  5. Step 5: Solve for x
    x = 3,238,865,788.92/65,854.07
  6. Step 6: Final answer
    x = 49,182.47

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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.