Home / 54,915.16-75,782.10-31,041.00

Finding the Fourth Proportional to 54,915.16, 75,782.10 and 31,041.00

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Solution

The fourth proportional to 54,915.16, 75,782.10 and 31,041.00 is: 42,836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,915.16 : 75,782.10 = 31,041.00 : x
  2. Step 2: Convert to fraction form
    54,915.16/75,782.10 = 31,041.00/x
  3. Step 3: Cross multiply
    54,915.16x = 75,782.10 × 31,041.00
  4. Step 4: Simplify right side
    54,915.16x = 2,352,351,787.19
  5. Step 5: Solve for x
    x = 2,352,351,787.19/54,915.16
  6. Step 6: Final answer
    x = 42,836.11

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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.