Home / 56,880.59-85,257.29-21,307.68

Finding the Fourth Proportional to 56,880.59, 85,257.29 and 21,307.68

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Solution

The fourth proportional to 56,880.59, 85,257.29 and 21,307.68 is: 31,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,880.59 : 85,257.29 = 21,307.68 : x
  2. Step 2: Convert to fraction form
    56,880.59/85,257.29 = 21,307.68/x
  3. Step 3: Cross multiply
    56,880.59x = 85,257.29 × 21,307.68
  4. Step 4: Simplify right side
    56,880.59x = 1,816,635,106.26
  5. Step 5: Solve for x
    x = 1,816,635,106.26/56,880.59
  6. Step 6: Final answer
    x = 31,937.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.