Home / 42,135.49-63,199.05-10,970.74

Finding the Fourth Proportional to 42,135.49, 63,199.05 and 10,970.74

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Solution

The fourth proportional to 42,135.49, 63,199.05 and 10,970.74 is: 16,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.49 : 63,199.05 = 10,970.74 : x
  2. Step 2: Convert to fraction form
    42,135.49/63,199.05 = 10,970.74/x
  3. Step 3: Cross multiply
    42,135.49x = 63,199.05 × 10,970.74
  4. Step 4: Simplify right side
    42,135.49x = 693,340,345.80
  5. Step 5: Solve for x
    x = 693,340,345.80/42,135.49
  6. Step 6: Final answer
    x = 16,455.02

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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.