Home / 76,353.21-105,368.07-42,363.93

Finding the Fourth Proportional to 76,353.21, 105,368.07 and 42,363.93

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Solution

The fourth proportional to 76,353.21, 105,368.07 and 42,363.93 is: 58,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,353.21 : 105,368.07 = 42,363.93 : x
  2. Step 2: Convert to fraction form
    76,353.21/105,368.07 = 42,363.93/x
  3. Step 3: Cross multiply
    76,353.21x = 105,368.07 × 42,363.93
  4. Step 4: Simplify right side
    76,353.21x = 4,463,805,541.72
  5. Step 5: Solve for x
    x = 4,463,805,541.72/76,353.21
  6. Step 6: Final answer
    x = 58,462.58

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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.