Home / 77,341.84-115,783.02-42,174.88

Finding the Fourth Proportional to 77,341.84, 115,783.02 and 42,174.88

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Solution

The fourth proportional to 77,341.84, 115,783.02 and 42,174.88 is: 63,137.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,341.84 : 115,783.02 = 42,174.88 : x
  2. Step 2: Convert to fraction form
    77,341.84/115,783.02 = 42,174.88/x
  3. Step 3: Cross multiply
    77,341.84x = 115,783.02 × 42,174.88
  4. Step 4: Simplify right side
    77,341.84x = 4,883,134,685.08
  5. Step 5: Solve for x
    x = 4,883,134,685.08/77,341.84
  6. Step 6: Final answer
    x = 63,137.04

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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.