Home / 76,307.10-105,301.84-42,315.04

Finding the Fourth Proportional to 76,307.10, 105,301.84 and 42,315.04

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Solution

The fourth proportional to 76,307.10, 105,301.84 and 42,315.04 is: 58,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,307.10 : 105,301.84 = 42,315.04 : x
  2. Step 2: Convert to fraction form
    76,307.10/105,301.84 = 42,315.04/x
  3. Step 3: Cross multiply
    76,307.10x = 105,301.84 × 42,315.04
  4. Step 4: Simplify right side
    76,307.10x = 4,455,851,571.67
  5. Step 5: Solve for x
    x = 4,455,851,571.67/76,307.10
  6. Step 6: Final answer
    x = 58,393.67

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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.