Home / 71,685.84-98,908.38-43,386.06

Finding the Fourth Proportional to 71,685.84, 98,908.38 and 43,386.06

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Solution

The fourth proportional to 71,685.84, 98,908.38 and 43,386.06 is: 59,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,685.84 : 98,908.38 = 43,386.06 : x
  2. Step 2: Convert to fraction form
    71,685.84/98,908.38 = 43,386.06/x
  3. Step 3: Cross multiply
    71,685.84x = 98,908.38 × 43,386.06
  4. Step 4: Simplify right side
    71,685.84x = 4,291,244,909.18
  5. Step 5: Solve for x
    x = 4,291,244,909.18/71,685.84
  6. Step 6: Final answer
    x = 59,861.82

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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.