Home / 56,136.36-77,466.18-30,985.80

Finding the Fourth Proportional to 56,136.36, 77,466.18 and 30,985.80

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Solution

The fourth proportional to 56,136.36, 77,466.18 and 30,985.80 is: 42,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,136.36 : 77,466.18 = 30,985.80 : x
  2. Step 2: Convert to fraction form
    56,136.36/77,466.18 = 30,985.80/x
  3. Step 3: Cross multiply
    56,136.36x = 77,466.18 × 30,985.80
  4. Step 4: Simplify right side
    56,136.36x = 2,400,351,560.24
  5. Step 5: Solve for x
    x = 2,400,351,560.24/56,136.36
  6. Step 6: Final answer
    x = 42,759.30

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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.