Home / 78,341.46-108,113.52-42,533.76

Finding the Fourth Proportional to 78,341.46, 108,113.52 and 42,533.76

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Solution

The fourth proportional to 78,341.46, 108,113.52 and 42,533.76 is: 58,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,341.46 : 108,113.52 = 42,533.76 : x
  2. Step 2: Convert to fraction form
    78,341.46/108,113.52 = 42,533.76/x
  3. Step 3: Cross multiply
    78,341.46x = 108,113.52 × 42,533.76
  4. Step 4: Simplify right side
    78,341.46x = 4,598,474,512.44
  5. Step 5: Solve for x
    x = 4,598,474,512.44/78,341.46
  6. Step 6: Final answer
    x = 58,697.84

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1.5x scale

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.