Home / 40,700.18-61,059.75-12,618.77

Finding the Fourth Proportional to 40,700.18, 61,059.75 and 12,618.77

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Solution

The fourth proportional to 40,700.18, 61,059.75 and 12,618.77 is: 18,931.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,700.18 : 61,059.75 = 12,618.77 : x
  2. Step 2: Convert to fraction form
    40,700.18/61,059.75 = 12,618.77/x
  3. Step 3: Cross multiply
    40,700.18x = 61,059.75 × 12,618.77
  4. Step 4: Simplify right side
    40,700.18x = 770,498,941.51
  5. Step 5: Solve for x
    x = 770,498,941.51/40,700.18
  6. Step 6: Final answer
    x = 18,931.09

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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.