Home / 56,715.30-85,018.95-21,167.10

Finding the Fourth Proportional to 56,715.30, 85,018.95 and 21,167.10

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Solution

The fourth proportional to 56,715.30, 85,018.95 and 21,167.10 is: 31,730.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.30 : 85,018.95 = 21,167.10 : x
  2. Step 2: Convert to fraction form
    56,715.30/85,018.95 = 21,167.10/x
  3. Step 3: Cross multiply
    56,715.30x = 85,018.95 × 21,167.10
  4. Step 4: Simplify right side
    56,715.30x = 1,799,604,616.55
  5. Step 5: Solve for x
    x = 1,799,604,616.55/56,715.30
  6. Step 6: Final answer
    x = 31,730.50

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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.