Home / 53,386.81-80,128.52-28,447.93

Finding the Fourth Proportional to 53,386.81, 80,128.52 and 28,447.93

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Solution

The fourth proportional to 53,386.81, 80,128.52 and 28,447.93 is: 42,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,386.81 : 80,128.52 = 28,447.93 : x
  2. Step 2: Convert to fraction form
    53,386.81/80,128.52 = 28,447.93/x
  3. Step 3: Cross multiply
    53,386.81x = 80,128.52 × 28,447.93
  4. Step 4: Simplify right side
    53,386.81x = 2,279,490,527.96
  5. Step 5: Solve for x
    x = 2,279,490,527.96/53,386.81
  6. Step 6: Final answer
    x = 42,697.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.