Home / 70,918.93-97,868.81-39,089.05

Finding the Fourth Proportional to 70,918.93, 97,868.81 and 39,089.05

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Solution

The fourth proportional to 70,918.93, 97,868.81 and 39,089.05 is: 53,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,918.93 : 97,868.81 = 39,089.05 : x
  2. Step 2: Convert to fraction form
    70,918.93/97,868.81 = 39,089.05/x
  3. Step 3: Cross multiply
    70,918.93x = 97,868.81 × 39,089.05
  4. Step 4: Simplify right side
    70,918.93x = 3,825,598,612.09
  5. Step 5: Solve for x
    x = 3,825,598,612.09/70,918.93
  6. Step 6: Final answer
    x = 53,943.26

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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.