Home / 76,148.50-105,036.18-61,077.34

Finding the Fourth Proportional to 76,148.50, 105,036.18 and 61,077.34

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Solution

The fourth proportional to 76,148.50, 105,036.18 and 61,077.34 is: 84,247.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,148.50 : 105,036.18 = 61,077.34 : x
  2. Step 2: Convert to fraction form
    76,148.50/105,036.18 = 61,077.34/x
  3. Step 3: Cross multiply
    76,148.50x = 105,036.18 × 61,077.34
  4. Step 4: Simplify right side
    76,148.50x = 6,415,330,478.16
  5. Step 5: Solve for x
    x = 6,415,330,478.16/76,148.50
  6. Step 6: Final answer
    x = 84,247.63

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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.