Home / 70,921.08-97,875.46-39,089.90

Finding the Fourth Proportional to 70,921.08, 97,875.46 and 39,089.90

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Solution

The fourth proportional to 70,921.08, 97,875.46 and 39,089.90 is: 53,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,921.08 : 97,875.46 = 39,089.90 : x
  2. Step 2: Convert to fraction form
    70,921.08/97,875.46 = 39,089.90/x
  3. Step 3: Cross multiply
    70,921.08x = 97,875.46 × 39,089.90
  4. Step 4: Simplify right side
    70,921.08x = 3,825,941,943.85
  5. Step 5: Solve for x
    x = 3,825,941,943.85/70,921.08
  6. Step 6: Final answer
    x = 53,946.47

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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.