Home / 90,145.26-124,411.32-52,419.51

Finding the Fourth Proportional to 90,145.26, 124,411.32 and 52,419.51

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Solution

The fourth proportional to 90,145.26, 124,411.32 and 52,419.51 is: 72,345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,145.26 : 124,411.32 = 52,419.51 : x
  2. Step 2: Convert to fraction form
    90,145.26/124,411.32 = 52,419.51/x
  3. Step 3: Cross multiply
    90,145.26x = 124,411.32 × 52,419.51
  4. Step 4: Simplify right side
    90,145.26x = 6,521,580,432.85
  5. Step 5: Solve for x
    x = 6,521,580,432.85/90,145.26
  6. Step 6: Final answer
    x = 72,345.24

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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.