Home / 88,136.22-121,582.86-56,271.60

Finding the Fourth Proportional to 88,136.22, 121,582.86 and 56,271.60

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Solution

The fourth proportional to 88,136.22, 121,582.86 and 56,271.60 is: 77,626.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,136.22 : 121,582.86 = 56,271.60 : x
  2. Step 2: Convert to fraction form
    88,136.22/121,582.86 = 56,271.60/x
  3. Step 3: Cross multiply
    88,136.22x = 121,582.86 × 56,271.60
  4. Step 4: Simplify right side
    88,136.22x = 6,841,662,064.78
  5. Step 5: Solve for x
    x = 6,841,662,064.78/88,136.22
  6. Step 6: Final answer
    x = 77,626.00

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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.