Home / 76,210.64-105,144.36-47,918.48

Finding the Fourth Proportional to 76,210.64, 105,144.36 and 47,918.48

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Solution

The fourth proportional to 76,210.64, 105,144.36 and 47,918.48 is: 66,110.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,210.64 : 105,144.36 = 47,918.48 : x
  2. Step 2: Convert to fraction form
    76,210.64/105,144.36 = 47,918.48/x
  3. Step 3: Cross multiply
    76,210.64x = 105,144.36 × 47,918.48
  4. Step 4: Simplify right side
    76,210.64x = 5,038,357,911.77
  5. Step 5: Solve for x
    x = 5,038,357,911.77/76,210.64
  6. Step 6: Final answer
    x = 66,110.95

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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.