Home / 65,316.40-90,140.20-36,645.14

Finding the Fourth Proportional to 65,316.40, 90,140.20 and 36,645.14

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Solution

The fourth proportional to 65,316.40, 90,140.20 and 36,645.14 is: 50,572.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.40 : 90,140.20 = 36,645.14 : x
  2. Step 2: Convert to fraction form
    65,316.40/90,140.20 = 36,645.14/x
  3. Step 3: Cross multiply
    65,316.40x = 90,140.20 × 36,645.14
  4. Step 4: Simplify right side
    65,316.40x = 3,303,200,248.63
  5. Step 5: Solve for x
    x = 3,303,200,248.63/65,316.40
  6. Step 6: Final answer
    x = 50,572.29

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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.