Home / 85,869.40-128,831.10-41,497.60

Finding the Fourth Proportional to 85,869.40, 128,831.10 and 41,497.60

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Solution

The fourth proportional to 85,869.40, 128,831.10 and 41,497.60 is: 62,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869.40 : 128,831.10 = 41,497.60 : x
  2. Step 2: Convert to fraction form
    85,869.40/128,831.10 = 41,497.60/x
  3. Step 3: Cross multiply
    85,869.40x = 128,831.10 × 41,497.60
  4. Step 4: Simplify right side
    85,869.40x = 5,346,181,455.36
  5. Step 5: Solve for x
    x = 5,346,181,455.36/85,869.40
  6. Step 6: Final answer
    x = 62,259.45

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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.