Home / 54,645.04-75,415.80-33,438.40

Finding the Fourth Proportional to 54,645.04, 75,415.80 and 33,438.40

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Solution

The fourth proportional to 54,645.04, 75,415.80 and 33,438.40 is: 46,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,645.04 : 75,415.80 = 33,438.40 : x
  2. Step 2: Convert to fraction form
    54,645.04/75,415.80 = 33,438.40/x
  3. Step 3: Cross multiply
    54,645.04x = 75,415.80 × 33,438.40
  4. Step 4: Simplify right side
    54,645.04x = 2,521,783,686.72
  5. Step 5: Solve for x
    x = 2,521,783,686.72/54,645.04
  6. Step 6: Final answer
    x = 46,148.45

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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.