Home / 72,172.36-99,642.18-46,701.64

Finding the Fourth Proportional to 72,172.36, 99,642.18 and 46,701.64

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Solution

The fourth proportional to 72,172.36, 99,642.18 and 46,701.64 is: 64,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,172.36 : 99,642.18 = 46,701.64 : x
  2. Step 2: Convert to fraction form
    72,172.36/99,642.18 = 46,701.64/x
  3. Step 3: Cross multiply
    72,172.36x = 99,642.18 × 46,701.64
  4. Step 4: Simplify right side
    72,172.36x = 4,653,453,219.18
  5. Step 5: Solve for x
    x = 4,653,453,219.18/72,172.36
  6. Step 6: Final answer
    x = 64,476.94

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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.