Home / 42,328.42-63,740.01-31,312.84

Finding the Fourth Proportional to 42,328.42, 63,740.01 and 31,312.84

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Solution

The fourth proportional to 42,328.42, 63,740.01 and 31,312.84 is: 47,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,328.42 : 63,740.01 = 31,312.84 : x
  2. Step 2: Convert to fraction form
    42,328.42/63,740.01 = 31,312.84/x
  3. Step 3: Cross multiply
    42,328.42x = 63,740.01 × 31,312.84
  4. Step 4: Simplify right side
    42,328.42x = 1,995,880,734.73
  5. Step 5: Solve for x
    x = 1,995,880,734.73/42,328.42
  6. Step 6: Final answer
    x = 47,152.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.