Home / 90,154.59-124,442.91-63,303.77

Finding the Fourth Proportional to 90,154.59, 124,442.91 and 63,303.77

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Solution

The fourth proportional to 90,154.59, 124,442.91 and 63,303.77 is: 87,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,154.59 : 124,442.91 = 63,303.77 : x
  2. Step 2: Convert to fraction form
    90,154.59/124,442.91 = 63,303.77/x
  3. Step 3: Cross multiply
    90,154.59x = 124,442.91 × 63,303.77
  4. Step 4: Simplify right side
    90,154.59x = 7,877,704,730.56
  5. Step 5: Solve for x
    x = 7,877,704,730.56/90,154.59
  6. Step 6: Final answer
    x = 87,379.96

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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.