Home / 76,117.42-105,142.44-58,430.98

Finding the Fourth Proportional to 76,117.42, 105,142.44 and 58,430.98

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Solution

The fourth proportional to 76,117.42, 105,142.44 and 58,430.98 is: 80,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,117.42 : 105,142.44 = 58,430.98 : x
  2. Step 2: Convert to fraction form
    76,117.42/105,142.44 = 58,430.98/x
  3. Step 3: Cross multiply
    76,117.42x = 105,142.44 × 58,430.98
  4. Step 4: Simplify right side
    76,117.42x = 6,143,575,808.79
  5. Step 5: Solve for x
    x = 6,143,575,808.79/76,117.42
  6. Step 6: Final answer
    x = 80,711.82

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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.