Home / 42,738.98-64,101.99-15,030.50

Finding the Fourth Proportional to 42,738.98, 64,101.99 and 15,030.50

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Solution

The fourth proportional to 42,738.98, 64,101.99 and 15,030.50 is: 22,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,738.98 : 64,101.99 = 15,030.50 : x
  2. Step 2: Convert to fraction form
    42,738.98/64,101.99 = 15,030.50/x
  3. Step 3: Cross multiply
    42,738.98x = 64,101.99 × 15,030.50
  4. Step 4: Simplify right side
    42,738.98x = 963,484,960.70
  5. Step 5: Solve for x
    x = 963,484,960.70/42,738.98
  6. Step 6: Final answer
    x = 22,543.47

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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.