Home / 90,909.79-136,214.32-46,475.41

Finding the Fourth Proportional to 90,909.79, 136,214.32 and 46,475.41

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Solution

The fourth proportional to 90,909.79, 136,214.32 and 46,475.41 is: 69,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,909.79 : 136,214.32 = 46,475.41 : x
  2. Step 2: Convert to fraction form
    90,909.79/136,214.32 = 46,475.41/x
  3. Step 3: Cross multiply
    90,909.79x = 136,214.32 × 46,475.41
  4. Step 4: Simplify right side
    90,909.79x = 6,330,616,369.87
  5. Step 5: Solve for x
    x = 6,330,616,369.87/90,909.79
  6. Step 6: Final answer
    x = 69,636.24

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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.