Home / 90,430.64-124,795.78-50,146.10

Finding the Fourth Proportional to 90,430.64, 124,795.78 and 50,146.10

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Solution

The fourth proportional to 90,430.64, 124,795.78 and 50,146.10 is: 69,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,430.64 : 124,795.78 = 50,146.10 : x
  2. Step 2: Convert to fraction form
    90,430.64/124,795.78 = 50,146.10/x
  3. Step 3: Cross multiply
    90,430.64x = 124,795.78 × 50,146.10
  4. Step 4: Simplify right side
    90,430.64x = 6,258,021,663.46
  5. Step 5: Solve for x
    x = 6,258,021,663.46/90,430.64
  6. Step 6: Final answer
    x = 69,202.45

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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.