Home / 72,316.89-99,785.42-45,440.36

Finding the Fourth Proportional to 72,316.89, 99,785.42 and 45,440.36

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Solution

The fourth proportional to 72,316.89, 99,785.42 and 45,440.36 is: 62,700.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,316.89 : 99,785.42 = 45,440.36 : x
  2. Step 2: Convert to fraction form
    72,316.89/99,785.42 = 45,440.36/x
  3. Step 3: Cross multiply
    72,316.89x = 99,785.42 × 45,440.36
  4. Step 4: Simplify right side
    72,316.89x = 4,534,285,407.55
  5. Step 5: Solve for x
    x = 4,534,285,407.55/72,316.89
  6. Step 6: Final answer
    x = 62,700.23

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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.