Home / 72,318.85-108,038.49-46,810.57

Finding the Fourth Proportional to 72,318.85, 108,038.49 and 46,810.57

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Solution

The fourth proportional to 72,318.85, 108,038.49 and 46,810.57 is: 69,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,318.85 : 108,038.49 = 46,810.57 : x
  2. Step 2: Convert to fraction form
    72,318.85/108,038.49 = 46,810.57/x
  3. Step 3: Cross multiply
    72,318.85x = 108,038.49 × 46,810.57
  4. Step 4: Simplify right side
    72,318.85x = 5,057,343,415.87
  5. Step 5: Solve for x
    x = 5,057,343,415.87/72,318.85
  6. Step 6: Final answer
    x = 69,931.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.