Home / 65,868.84-98,825.40-20,897.55

Finding the Fourth Proportional to 65,868.84, 98,825.40 and 20,897.55

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Solution

The fourth proportional to 65,868.84, 98,825.40 and 20,897.55 is: 31,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,868.84 : 98,825.40 = 20,897.55 : x
  2. Step 2: Convert to fraction form
    65,868.84/98,825.40 = 20,897.55/x
  3. Step 3: Cross multiply
    65,868.84x = 98,825.40 × 20,897.55
  4. Step 4: Simplify right side
    65,868.84x = 2,065,208,737.77
  5. Step 5: Solve for x
    x = 2,065,208,737.77/65,868.84
  6. Step 6: Final answer
    x = 31,353.35

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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.