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Finding the Fourth Proportional to 90,248, 124,542.40 and 52,547.52

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Solution

The fourth proportional to 90,248, 124,542.40 and 52,547.52 is: 72,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,248 : 124,542.40 = 52,547.52 : x
  2. Step 2: Convert to fraction form
    90,248/124,542.40 = 52,547.52/x
  3. Step 3: Cross multiply
    90,248x = 124,542.40 × 52,547.52
  4. Step 4: Simplify right side
    90,248x = 6,544,394,254.85
  5. Step 5: Solve for x
    x = 6,544,394,254.85/90,248
  6. Step 6: Final answer
    x = 72,515.67

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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.