Home / 65,188.16-97,780.14-20,817.62

Finding the Fourth Proportional to 65,188.16, 97,780.14 and 20,817.62

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Solution

The fourth proportional to 65,188.16, 97,780.14 and 20,817.62 is: 31,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,188.16 : 97,780.14 = 20,817.62 : x
  2. Step 2: Convert to fraction form
    65,188.16/97,780.14 = 20,817.62/x
  3. Step 3: Cross multiply
    65,188.16x = 97,780.14 × 20,817.62
  4. Step 4: Simplify right side
    65,188.16x = 2,035,549,798.07
  5. Step 5: Solve for x
    x = 2,035,549,798.07/65,188.16
  6. Step 6: Final answer
    x = 31,225.76

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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.