Home / 76,263.08-105,242.98-42,729.32

Finding the Fourth Proportional to 76,263.08, 105,242.98 and 42,729.32

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Solution

The fourth proportional to 76,263.08, 105,242.98 and 42,729.32 is: 58,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.08 : 105,242.98 = 42,729.32 : x
  2. Step 2: Convert to fraction form
    76,263.08/105,242.98 = 42,729.32/x
  3. Step 3: Cross multiply
    76,263.08x = 105,242.98 × 42,729.32
  4. Step 4: Simplify right side
    76,263.08x = 4,496,960,970.17
  5. Step 5: Solve for x
    x = 4,496,960,970.17/76,263.08
  6. Step 6: Final answer
    x = 58,966.42

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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.