Home / 76,153.08-105,091.38-42,619.08

Finding the Fourth Proportional to 76,153.08, 105,091.38 and 42,619.08

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Solution

The fourth proportional to 76,153.08, 105,091.38 and 42,619.08 is: 58,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.08 : 105,091.38 = 42,619.08 : x
  2. Step 2: Convert to fraction form
    76,153.08/105,091.38 = 42,619.08/x
  3. Step 3: Cross multiply
    76,153.08x = 105,091.38 × 42,619.08
  4. Step 4: Simplify right side
    76,153.08x = 4,478,897,931.53
  5. Step 5: Solve for x
    x = 4,478,897,931.53/76,153.08
  6. Step 6: Final answer
    x = 58,814.40

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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.