Home / 90,306.46-124,683.18-56,328.58

Finding the Fourth Proportional to 90,306.46, 124,683.18 and 56,328.58

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Solution

The fourth proportional to 90,306.46, 124,683.18 and 56,328.58 is: 77,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,306.46 : 124,683.18 = 56,328.58 : x
  2. Step 2: Convert to fraction form
    90,306.46/124,683.18 = 56,328.58/x
  3. Step 3: Cross multiply
    90,306.46x = 124,683.18 × 56,328.58
  4. Step 4: Simplify right side
    90,306.46x = 7,023,225,855.87
  5. Step 5: Solve for x
    x = 7,023,225,855.87/90,306.46
  6. Step 6: Final answer
    x = 77,771.03

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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.