Home / 71,038.39-98,032.78-39,207.06

Finding the Fourth Proportional to 71,038.39, 98,032.78 and 39,207.06

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Solution

The fourth proportional to 71,038.39, 98,032.78 and 39,207.06 is: 54,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,038.39 : 98,032.78 = 39,207.06 : x
  2. Step 2: Convert to fraction form
    71,038.39/98,032.78 = 39,207.06/x
  3. Step 3: Cross multiply
    71,038.39x = 98,032.78 × 39,207.06
  4. Step 4: Simplify right side
    71,038.39x = 3,843,577,332.51
  5. Step 5: Solve for x
    x = 3,843,577,332.51/71,038.39
  6. Step 6: Final answer
    x = 54,105.63

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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.