Home / 85,847.35-128,808.02-46,432.21

Finding the Fourth Proportional to 85,847.35, 128,808.02 and 46,432.21

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Solution

The fourth proportional to 85,847.35, 128,808.02 and 46,432.21 is: 69,668.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.35 : 128,808.02 = 46,432.21 : x
  2. Step 2: Convert to fraction form
    85,847.35/128,808.02 = 46,432.21/x
  3. Step 3: Cross multiply
    85,847.35x = 128,808.02 × 46,432.21
  4. Step 4: Simplify right side
    85,847.35x = 5,980,841,034.32
  5. Step 5: Solve for x
    x = 5,980,841,034.32/85,847.35
  6. Step 6: Final answer
    x = 69,668.32

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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.