Home / 51,070.12-70,447.99-30,646.90

Finding the Fourth Proportional to 51,070.12, 70,447.99 and 30,646.90

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Solution

The fourth proportional to 51,070.12, 70,447.99 and 30,646.90 is: 42,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,070.12 : 70,447.99 = 30,646.90 : x
  2. Step 2: Convert to fraction form
    51,070.12/70,447.99 = 30,646.90/x
  3. Step 3: Cross multiply
    51,070.12x = 70,447.99 × 30,646.90
  4. Step 4: Simplify right side
    51,070.12x = 2,159,012,504.73
  5. Step 5: Solve for x
    x = 2,159,012,504.73/51,070.12
  6. Step 6: Final answer
    x = 42,275.45

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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.