Home / 85,831.04-118,442.09-47,588.35

Finding the Fourth Proportional to 85,831.04, 118,442.09 and 47,588.35

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Solution

The fourth proportional to 85,831.04, 118,442.09 and 47,588.35 is: 65,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,831.04 : 118,442.09 = 47,588.35 : x
  2. Step 2: Convert to fraction form
    85,831.04/118,442.09 = 47,588.35/x
  3. Step 3: Cross multiply
    85,831.04x = 118,442.09 × 47,588.35
  4. Step 4: Simplify right side
    85,831.04x = 5,636,463,633.65
  5. Step 5: Solve for x
    x = 5,636,463,633.65/85,831.04
  6. Step 6: Final answer
    x = 65,669.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.