Home / 51,015.98-70,436.36-45,621.64

Finding the Fourth Proportional to 51,015.98, 70,436.36 and 45,621.64

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Solution

The fourth proportional to 51,015.98, 70,436.36 and 45,621.64 is: 62,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,015.98 : 70,436.36 = 45,621.64 : x
  2. Step 2: Convert to fraction form
    51,015.98/70,436.36 = 45,621.64/x
  3. Step 3: Cross multiply
    51,015.98x = 70,436.36 × 45,621.64
  4. Step 4: Simplify right side
    51,015.98x = 3,213,421,854.63
  5. Step 5: Solve for x
    x = 3,213,421,854.63/51,015.98
  6. Step 6: Final answer
    x = 62,988.53

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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.