Home / 78,312.55-117,317.63-46,747.83

Finding the Fourth Proportional to 78,312.55, 117,317.63 and 46,747.83

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Solution

The fourth proportional to 78,312.55, 117,317.63 and 46,747.83 is: 70,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312.55 : 117,317.63 = 46,747.83 : x
  2. Step 2: Convert to fraction form
    78,312.55/117,317.63 = 46,747.83/x
  3. Step 3: Cross multiply
    78,312.55x = 117,317.63 × 46,747.83
  4. Step 4: Simplify right side
    78,312.55x = 5,484,344,623.24
  5. Step 5: Solve for x
    x = 5,484,344,623.24/78,312.55
  6. Step 6: Final answer
    x = 70,031.49

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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.