Home / 77,140.08-106,417.80-53,300.16

Finding the Fourth Proportional to 77,140.08, 106,417.80 and 53,300.16

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Solution

The fourth proportional to 77,140.08, 106,417.80 and 53,300.16 is: 73,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.08 : 106,417.80 = 53,300.16 : x
  2. Step 2: Convert to fraction form
    77,140.08/106,417.80 = 53,300.16/x
  3. Step 3: Cross multiply
    77,140.08x = 106,417.80 × 53,300.16
  4. Step 4: Simplify right side
    77,140.08x = 5,672,085,766.85
  5. Step 5: Solve for x
    x = 5,672,085,766.85/77,140.08
  6. Step 6: Final answer
    x = 73,529.68

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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.