Home / 71,265.67-98,347.57-39,434.34

Finding the Fourth Proportional to 71,265.67, 98,347.57 and 39,434.34

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Solution

The fourth proportional to 71,265.67, 98,347.57 and 39,434.34 is: 54,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.67 : 98,347.57 = 39,434.34 : x
  2. Step 2: Convert to fraction form
    71,265.67/98,347.57 = 39,434.34/x
  3. Step 3: Cross multiply
    71,265.67x = 98,347.57 × 39,434.34
  4. Step 4: Simplify right side
    71,265.67x = 3,878,271,783.77
  5. Step 5: Solve for x
    x = 3,878,271,783.77/71,265.67
  6. Step 6: Final answer
    x = 54,419.91

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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.