Home / 65,348.28-90,303.21-53,407.26

Finding the Fourth Proportional to 65,348.28, 90,303.21 and 53,407.26

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Solution

The fourth proportional to 65,348.28, 90,303.21 and 53,407.26 is: 73,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,348.28 : 90,303.21 = 53,407.26 : x
  2. Step 2: Convert to fraction form
    65,348.28/90,303.21 = 53,407.26/x
  3. Step 3: Cross multiply
    65,348.28x = 90,303.21 × 53,407.26
  4. Step 4: Simplify right side
    65,348.28x = 4,822,847,015.30
  5. Step 5: Solve for x
    x = 4,822,847,015.30/65,348.28
  6. Step 6: Final answer
    x = 73,802.20

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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.