Home / 71,705.16-98,955.51-39,441.13

Finding the Fourth Proportional to 71,705.16, 98,955.51 and 39,441.13

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Solution

The fourth proportional to 71,705.16, 98,955.51 and 39,441.13 is: 54,430.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,705.16 : 98,955.51 = 39,441.13 : x
  2. Step 2: Convert to fraction form
    71,705.16/98,955.51 = 39,441.13/x
  3. Step 3: Cross multiply
    71,705.16x = 98,955.51 × 39,441.13
  4. Step 4: Simplify right side
    71,705.16x = 3,902,917,134.13
  5. Step 5: Solve for x
    x = 3,902,917,134.13/71,705.16
  6. Step 6: Final answer
    x = 54,430.07

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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.