Home / 78,256.08-117,356.22-28,323.18

Finding the Fourth Proportional to 78,256.08, 117,356.22 and 28,323.18

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Solution

The fourth proportional to 78,256.08, 117,356.22 and 28,323.18 is: 42,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,256.08 : 117,356.22 = 28,323.18 : x
  2. Step 2: Convert to fraction form
    78,256.08/117,356.22 = 28,323.18/x
  3. Step 3: Cross multiply
    78,256.08x = 117,356.22 × 28,323.18
  4. Step 4: Simplify right side
    78,256.08x = 3,323,901,343.18
  5. Step 5: Solve for x
    x = 3,323,901,343.18/78,256.08
  6. Step 6: Final answer
    x = 42,474.67

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1.5x scale

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.