Home / 56,161.95-77,503.67-30,668.55

Finding the Fourth Proportional to 56,161.95, 77,503.67 and 30,668.55

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Solution

The fourth proportional to 56,161.95, 77,503.67 and 30,668.55 is: 42,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,161.95 : 77,503.67 = 30,668.55 : x
  2. Step 2: Convert to fraction form
    56,161.95/77,503.67 = 30,668.55/x
  3. Step 3: Cross multiply
    56,161.95x = 77,503.67 × 30,668.55
  4. Step 4: Simplify right side
    56,161.95x = 2,376,925,178.58
  5. Step 5: Solve for x
    x = 2,376,925,178.58/56,161.95
  6. Step 6: Final answer
    x = 42,322.70

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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.