Home / 65,920.74-90,970.08-35,705.36

Finding the Fourth Proportional to 65,920.74, 90,970.08 and 35,705.36

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Solution

The fourth proportional to 65,920.74, 90,970.08 and 35,705.36 is: 49,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920.74 : 90,970.08 = 35,705.36 : x
  2. Step 2: Convert to fraction form
    65,920.74/90,970.08 = 35,705.36/x
  3. Step 3: Cross multiply
    65,920.74x = 90,970.08 × 35,705.36
  4. Step 4: Simplify right side
    65,920.74x = 3,248,119,455.63
  5. Step 5: Solve for x
    x = 3,248,119,455.63/65,920.74
  6. Step 6: Final answer
    x = 49,273.10

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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.