Home / 74,875.37-112,312.85-30,491.69

Finding the Fourth Proportional to 74,875.37, 112,312.85 and 30,491.69

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Solution

The fourth proportional to 74,875.37, 112,312.85 and 30,491.69 is: 45,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,875.37 : 112,312.85 = 30,491.69 : x
  2. Step 2: Convert to fraction form
    74,875.37/112,312.85 = 30,491.69/x
  3. Step 3: Cross multiply
    74,875.37x = 112,312.85 × 30,491.69
  4. Step 4: Simplify right side
    74,875.37x = 3,424,607,891.19
  5. Step 5: Solve for x
    x = 3,424,607,891.19/74,875.37
  6. Step 6: Final answer
    x = 45,737.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.