Home / 65,445.10-90,308.93-36,763.20

Finding the Fourth Proportional to 65,445.10, 90,308.93 and 36,763.20

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Solution

The fourth proportional to 65,445.10, 90,308.93 and 36,763.20 is: 50,730.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,445.10 : 90,308.93 = 36,763.20 : x
  2. Step 2: Convert to fraction form
    65,445.10/90,308.93 = 36,763.20/x
  3. Step 3: Cross multiply
    65,445.10x = 90,308.93 × 36,763.20
  4. Step 4: Simplify right side
    65,445.10x = 3,320,045,071.56
  5. Step 5: Solve for x
    x = 3,320,045,071.56/65,445.10
  6. Step 6: Final answer
    x = 50,730.23

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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.