Home / 85,501.48-128,300.54-46,057.64

Finding the Fourth Proportional to 85,501.48, 128,300.54 and 46,057.64

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Solution

The fourth proportional to 85,501.48, 128,300.54 and 46,057.64 is: 69,112.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,501.48 : 128,300.54 = 46,057.64 : x
  2. Step 2: Convert to fraction form
    85,501.48/128,300.54 = 46,057.64/x
  3. Step 3: Cross multiply
    85,501.48x = 128,300.54 × 46,057.64
  4. Step 4: Simplify right side
    85,501.48x = 5,909,220,083.13
  5. Step 5: Solve for x
    x = 5,909,220,083.13/85,501.48
  6. Step 6: Final answer
    x = 69,112.49

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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.