Home / 56,426.19-77,869.05-30,935.01

Finding the Fourth Proportional to 56,426.19, 77,869.05 and 30,935.01

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Solution

The fourth proportional to 56,426.19, 77,869.05 and 30,935.01 is: 42,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.19 : 77,869.05 = 30,935.01 : x
  2. Step 2: Convert to fraction form
    56,426.19/77,869.05 = 30,935.01/x
  3. Step 3: Cross multiply
    56,426.19x = 77,869.05 × 30,935.01
  4. Step 4: Simplify right side
    56,426.19x = 2,408,879,840.44
  5. Step 5: Solve for x
    x = 2,408,879,840.44/56,426.19
  6. Step 6: Final answer
    x = 42,690.81

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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.