Home / 81,875.24-122,820.16-35,117.18

Finding the Fourth Proportional to 81,875.24, 122,820.16 and 35,117.18

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Solution

The fourth proportional to 81,875.24, 122,820.16 and 35,117.18 is: 52,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,875.24 : 122,820.16 = 35,117.18 : x
  2. Step 2: Convert to fraction form
    81,875.24/122,820.16 = 35,117.18/x
  3. Step 3: Cross multiply
    81,875.24x = 122,820.16 × 35,117.18
  4. Step 4: Simplify right side
    81,875.24x = 4,313,097,666.35
  5. Step 5: Solve for x
    x = 4,313,097,666.35/81,875.24
  6. Step 6: Final answer
    x = 52,678.90

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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.