Home / 72,458.64-99,899.36-46,919.60

Finding the Fourth Proportional to 72,458.64, 99,899.36 and 46,919.60

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Solution

The fourth proportional to 72,458.64, 99,899.36 and 46,919.60 is: 64,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,458.64 : 99,899.36 = 46,919.60 : x
  2. Step 2: Convert to fraction form
    72,458.64/99,899.36 = 46,919.60/x
  3. Step 3: Cross multiply
    72,458.64x = 99,899.36 × 46,919.60
  4. Step 4: Simplify right side
    72,458.64x = 4,687,238,011.46
  5. Step 5: Solve for x
    x = 4,687,238,011.46/72,458.64
  6. Step 6: Final answer
    x = 64,688.46

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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.