Home / 46,113.86-69,159.72-21,138.32

Finding the Fourth Proportional to 46,113.86, 69,159.72 and 21,138.32

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Solution

The fourth proportional to 46,113.86, 69,159.72 and 21,138.32 is: 31,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,113.86 : 69,159.72 = 21,138.32 : x
  2. Step 2: Convert to fraction form
    46,113.86/69,159.72 = 21,138.32/x
  3. Step 3: Cross multiply
    46,113.86x = 69,159.72 × 21,138.32
  4. Step 4: Simplify right side
    46,113.86x = 1,461,920,292.47
  5. Step 5: Solve for x
    x = 1,461,920,292.47/46,113.86
  6. Step 6: Final answer
    x = 31,702.41

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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.