Home / 88,620.07-122,307.45-56,357.74

Finding the Fourth Proportional to 88,620.07, 122,307.45 and 56,357.74

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Solution

The fourth proportional to 88,620.07, 122,307.45 and 56,357.74 is: 77,781.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,620.07 : 122,307.45 = 56,357.74 : x
  2. Step 2: Convert to fraction form
    88,620.07/122,307.45 = 56,357.74/x
  3. Step 3: Cross multiply
    88,620.07x = 122,307.45 × 56,357.74
  4. Step 4: Simplify right side
    88,620.07x = 6,892,970,855.63
  5. Step 5: Solve for x
    x = 6,892,970,855.63/88,620.07
  6. Step 6: Final answer
    x = 77,781.15

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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.