Home / 76,515.90-105,588.54-42,526.77

Finding the Fourth Proportional to 76,515.90, 105,588.54 and 42,526.77

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Solution

The fourth proportional to 76,515.90, 105,588.54 and 42,526.77 is: 58,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,515.90 : 105,588.54 = 42,526.77 : x
  2. Step 2: Convert to fraction form
    76,515.90/105,588.54 = 42,526.77/x
  3. Step 3: Cross multiply
    76,515.90x = 105,588.54 × 42,526.77
  4. Step 4: Simplify right side
    76,515.90x = 4,490,339,555.22
  5. Step 5: Solve for x
    x = 4,490,339,555.22/76,515.90
  6. Step 6: Final answer
    x = 58,685.05

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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.