Home / 51,030.75-70,424.84-28,370.12

Finding the Fourth Proportional to 51,030.75, 70,424.84 and 28,370.12

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Solution

The fourth proportional to 51,030.75, 70,424.84 and 28,370.12 is: 39,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.75 : 70,424.84 = 28,370.12 : x
  2. Step 2: Convert to fraction form
    51,030.75/70,424.84 = 28,370.12/x
  3. Step 3: Cross multiply
    51,030.75x = 70,424.84 × 28,370.12
  4. Step 4: Simplify right side
    51,030.75x = 1,997,960,667.81
  5. Step 5: Solve for x
    x = 1,997,960,667.81/51,030.75
  6. Step 6: Final answer
    x = 39,152.09

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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.