Home / 74,280.12-102,506.70-40,746.36

Finding the Fourth Proportional to 74,280.12, 102,506.70 and 40,746.36

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Solution

The fourth proportional to 74,280.12, 102,506.70 and 40,746.36 is: 56,230.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,280.12 : 102,506.70 = 40,746.36 : x
  2. Step 2: Convert to fraction form
    74,280.12/102,506.70 = 40,746.36/x
  3. Step 3: Cross multiply
    74,280.12x = 102,506.70 × 40,746.36
  4. Step 4: Simplify right side
    74,280.12x = 4,176,774,900.61
  5. Step 5: Solve for x
    x = 4,176,774,900.61/74,280.12
  6. Step 6: Final answer
    x = 56,230.05

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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.