Home / 90,117.63-124,354.44-49,831.20

Finding the Fourth Proportional to 90,117.63, 124,354.44 and 49,831.20

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Solution

The fourth proportional to 90,117.63, 124,354.44 and 49,831.20 is: 68,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.63 : 124,354.44 = 49,831.20 : x
  2. Step 2: Convert to fraction form
    90,117.63/124,354.44 = 49,831.20/x
  3. Step 3: Cross multiply
    90,117.63x = 124,354.44 × 49,831.20
  4. Step 4: Simplify right side
    90,117.63x = 6,196,730,970.53
  5. Step 5: Solve for x
    x = 6,196,730,970.53/90,117.63
  6. Step 6: Final answer
    x = 68,762.69

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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.