Home / 85,501.07-128,288.49-46,050.29

Finding the Fourth Proportional to 85,501.07, 128,288.49 and 46,050.29

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Solution

The fourth proportional to 85,501.07, 128,288.49 and 46,050.29 is: 69,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.07 : 128,288.49 = 46,050.29 : x
  2. Step 2: Convert to fraction form
    85,501.07/128,288.49 = 46,050.29/x
  3. Step 3: Cross multiply
    85,501.07x = 128,288.49 × 46,050.29
  4. Step 4: Simplify right side
    85,501.07x = 5,907,722,168.16
  5. Step 5: Solve for x
    x = 5,907,722,168.16/85,501.07
  6. Step 6: Final answer
    x = 69,095.30

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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.