Home / 90,071.12-124,299.50-52,345.37

Finding the Fourth Proportional to 90,071.12, 124,299.50 and 52,345.37

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Solution

The fourth proportional to 90,071.12, 124,299.50 and 52,345.37 is: 72,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,071.12 : 124,299.50 = 52,345.37 : x
  2. Step 2: Convert to fraction form
    90,071.12/124,299.50 = 52,345.37/x
  3. Step 3: Cross multiply
    90,071.12x = 124,299.50 × 52,345.37
  4. Step 4: Simplify right side
    90,071.12x = 6,506,503,367.34
  5. Step 5: Solve for x
    x = 6,506,503,367.34/90,071.12
  6. Step 6: Final answer
    x = 72,237.40

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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.