Home / 115,830.60-173,740.65-31,590.77

Finding the Fourth Proportional to 115,830.60, 173,740.65 and 31,590.77

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Solution

The fourth proportional to 115,830.60, 173,740.65 and 31,590.77 is: 47,384.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,830.60 : 173,740.65 = 31,590.77 : x
  2. Step 2: Convert to fraction form
    115,830.60/173,740.65 = 31,590.77/x
  3. Step 3: Cross multiply
    115,830.60x = 173,740.65 × 31,590.77
  4. Step 4: Simplify right side
    115,830.60x = 5,488,600,913.80
  5. Step 5: Solve for x
    x = 5,488,600,913.80/115,830.60
  6. Step 6: Final answer
    x = 47,384.72

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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.