Home / 70,822.40-106,184.40-31,358

Finding the Fourth Proportional to 70,822.40, 106,184.40 and 31,358

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Solution

The fourth proportional to 70,822.40, 106,184.40 and 31,358 is: 47,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,822.40 : 106,184.40 = 31,358 : x
  2. Step 2: Convert to fraction form
    70,822.40/106,184.40 = 31,358/x
  3. Step 3: Cross multiply
    70,822.40x = 106,184.40 × 31,358
  4. Step 4: Simplify right side
    70,822.40x = 3,329,730,415.20
  5. Step 5: Solve for x
    x = 3,329,730,415.20/70,822.40
  6. Step 6: Final answer
    x = 47,015.22

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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.