Home / 85,668.16-128,557.08-46,252.72

Finding the Fourth Proportional to 85,668.16, 128,557.08 and 46,252.72

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Solution

The fourth proportional to 85,668.16, 128,557.08 and 46,252.72 is: 69,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,668.16 : 128,557.08 = 46,252.72 : x
  2. Step 2: Convert to fraction form
    85,668.16/128,557.08 = 46,252.72/x
  3. Step 3: Cross multiply
    85,668.16x = 128,557.08 × 46,252.72
  4. Step 4: Simplify right side
    85,668.16x = 5,946,114,625.26
  5. Step 5: Solve for x
    x = 5,946,114,625.26/85,668.16
  6. Step 6: Final answer
    x = 69,408.69

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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.