Home / 76,132.56-105,050.40-47,818.08

Finding the Fourth Proportional to 76,132.56, 105,050.40 and 47,818.08

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Solution

The fourth proportional to 76,132.56, 105,050.40 and 47,818.08 is: 65,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,132.56 : 105,050.40 = 47,818.08 : x
  2. Step 2: Convert to fraction form
    76,132.56/105,050.40 = 47,818.08/x
  3. Step 3: Cross multiply
    76,132.56x = 105,050.40 × 47,818.08
  4. Step 4: Simplify right side
    76,132.56x = 5,023,308,431.23
  5. Step 5: Solve for x
    x = 5,023,308,431.23/76,132.56
  6. Step 6: Final answer
    x = 65,981.08

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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.