Home / 70,972.18-97,941.69-38,706.85

Finding the Fourth Proportional to 70,972.18, 97,941.69 and 38,706.85

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Solution

The fourth proportional to 70,972.18, 97,941.69 and 38,706.85 is: 53,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.18 : 97,941.69 = 38,706.85 : x
  2. Step 2: Convert to fraction form
    70,972.18/97,941.69 = 38,706.85/x
  3. Step 3: Cross multiply
    70,972.18x = 97,941.69 × 38,706.85
  4. Step 4: Simplify right side
    70,972.18x = 3,791,013,875.08
  5. Step 5: Solve for x
    x = 3,791,013,875.08/70,972.18
  6. Step 6: Final answer
    x = 53,415.49

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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.