Home / 65,636.12-90,584.64-40,159.48

Finding the Fourth Proportional to 65,636.12, 90,584.64 and 40,159.48

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Solution

The fourth proportional to 65,636.12, 90,584.64 and 40,159.48 is: 55,424.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,636.12 : 90,584.64 = 40,159.48 : x
  2. Step 2: Convert to fraction form
    65,636.12/90,584.64 = 40,159.48/x
  3. Step 3: Cross multiply
    65,636.12x = 90,584.64 × 40,159.48
  4. Step 4: Simplify right side
    65,636.12x = 3,637,832,038.39
  5. Step 5: Solve for x
    x = 3,637,832,038.39/65,636.12
  6. Step 6: Final answer
    x = 55,424.24

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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.