Home / 76,985.95-106,235.32-42,529.16

Finding the Fourth Proportional to 76,985.95, 106,235.32 and 42,529.16

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Solution

The fourth proportional to 76,985.95, 106,235.32 and 42,529.16 is: 58,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,985.95 : 106,235.32 = 42,529.16 : x
  2. Step 2: Convert to fraction form
    76,985.95/106,235.32 = 42,529.16/x
  3. Step 3: Cross multiply
    76,985.95x = 106,235.32 × 42,529.16
  4. Step 4: Simplify right side
    76,985.95x = 4,518,098,842.30
  5. Step 5: Solve for x
    x = 4,518,098,842.30/76,985.95
  6. Step 6: Final answer
    x = 58,687.32

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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.