Home / 65,241.17-90,031.28-38,385.42

Finding the Fourth Proportional to 65,241.17, 90,031.28 and 38,385.42

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Solution

The fourth proportional to 65,241.17, 90,031.28 and 38,385.42 is: 52,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,241.17 : 90,031.28 = 38,385.42 : x
  2. Step 2: Convert to fraction form
    65,241.17/90,031.28 = 38,385.42/x
  3. Step 3: Cross multiply
    65,241.17x = 90,031.28 × 38,385.42
  4. Step 4: Simplify right side
    65,241.17x = 3,455,888,495.94
  5. Step 5: Solve for x
    x = 3,455,888,495.94/65,241.17
  6. Step 6: Final answer
    x = 52,970.98

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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.