Home / 72,915.02-109,411.75-70,261.04

Finding the Fourth Proportional to 72,915.02, 109,411.75 and 70,261.04

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Solution

The fourth proportional to 72,915.02, 109,411.75 and 70,261.04 is: 105,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,915.02 : 109,411.75 = 70,261.04 : x
  2. Step 2: Convert to fraction form
    72,915.02/109,411.75 = 70,261.04/x
  3. Step 3: Cross multiply
    72,915.02x = 109,411.75 × 70,261.04
  4. Step 4: Simplify right side
    72,915.02x = 7,687,382,718.39
  5. Step 5: Solve for x
    x = 7,687,382,718.39/72,915.02
  6. Step 6: Final answer
    x = 105,429.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.