Home / 64,950.36-89,638.34-38,115.40

Finding the Fourth Proportional to 64,950.36, 89,638.34 and 38,115.40

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Solution

The fourth proportional to 64,950.36, 89,638.34 and 38,115.40 is: 52,603.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950.36 : 89,638.34 = 38,115.40 : x
  2. Step 2: Convert to fraction form
    64,950.36/89,638.34 = 38,115.40/x
  3. Step 3: Cross multiply
    64,950.36x = 89,638.34 × 38,115.40
  4. Step 4: Simplify right side
    64,950.36x = 3,416,601,184.44
  5. Step 5: Solve for x
    x = 3,416,601,184.44/64,950.36
  6. Step 6: Final answer
    x = 52,603.27

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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.