Home / 42,745.32-64,117.98-11,579.76

Finding the Fourth Proportional to 42,745.32, 64,117.98 and 11,579.76

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Solution

The fourth proportional to 42,745.32, 64,117.98 and 11,579.76 is: 17,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,745.32 : 64,117.98 = 11,579.76 : x
  2. Step 2: Convert to fraction form
    42,745.32/64,117.98 = 11,579.76/x
  3. Step 3: Cross multiply
    42,745.32x = 64,117.98 × 11,579.76
  4. Step 4: Simplify right side
    42,745.32x = 742,470,820.08
  5. Step 5: Solve for x
    x = 742,470,820.08/42,745.32
  6. Step 6: Final answer
    x = 17,369.64

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1.5x scale

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.