Home / 90,174.66-124,362.10-58,312.50

Finding the Fourth Proportional to 90,174.66, 124,362.10 and 58,312.50

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Solution

The fourth proportional to 90,174.66, 124,362.10 and 58,312.50 is: 80,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,174.66 : 124,362.10 = 58,312.50 : x
  2. Step 2: Convert to fraction form
    90,174.66/124,362.10 = 58,312.50/x
  3. Step 3: Cross multiply
    90,174.66x = 124,362.10 × 58,312.50
  4. Step 4: Simplify right side
    90,174.66x = 7,251,864,956.25
  5. Step 5: Solve for x
    x = 7,251,864,956.25/90,174.66
  6. Step 6: Final answer
    x = 80,420.21

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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.