Home / 85,844.83-128,785.71-28,924.40

Finding the Fourth Proportional to 85,844.83, 128,785.71 and 28,924.40

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Solution

The fourth proportional to 85,844.83, 128,785.71 and 28,924.40 is: 43,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,844.83 : 128,785.71 = 28,924.40 : x
  2. Step 2: Convert to fraction form
    85,844.83/128,785.71 = 28,924.40/x
  3. Step 3: Cross multiply
    85,844.83x = 128,785.71 × 28,924.40
  4. Step 4: Simplify right side
    85,844.83x = 3,725,048,746.40
  5. Step 5: Solve for x
    x = 3,725,048,746.40/85,844.83
  6. Step 6: Final answer
    x = 43,392.82

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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.