Home / 76,110.02-105,037.08-42,119.93

Finding the Fourth Proportional to 76,110.02, 105,037.08 and 42,119.93

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Solution

The fourth proportional to 76,110.02, 105,037.08 and 42,119.93 is: 58,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.02 : 105,037.08 = 42,119.93 : x
  2. Step 2: Convert to fraction form
    76,110.02/105,037.08 = 42,119.93/x
  3. Step 3: Cross multiply
    76,110.02x = 105,037.08 × 42,119.93
  4. Step 4: Simplify right side
    76,110.02x = 4,424,154,457.00
  5. Step 5: Solve for x
    x = 4,424,154,457.00/76,110.02
  6. Step 6: Final answer
    x = 58,128.41

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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.