Home / 81,612.29-112,625.09-45,802.35

Finding the Fourth Proportional to 81,612.29, 112,625.09 and 45,802.35

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Solution

The fourth proportional to 81,612.29, 112,625.09 and 45,802.35 is: 63,207.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,612.29 : 112,625.09 = 45,802.35 : x
  2. Step 2: Convert to fraction form
    81,612.29/112,625.09 = 45,802.35/x
  3. Step 3: Cross multiply
    81,612.29x = 112,625.09 × 45,802.35
  4. Step 4: Simplify right side
    81,612.29x = 5,158,493,561.95
  5. Step 5: Solve for x
    x = 5,158,493,561.95/81,612.29
  6. Step 6: Final answer
    x = 63,207.32

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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.