Home / 74,010.80-110,312.65-69,807.21

Finding the Fourth Proportional to 74,010.80, 110,312.65 and 69,807.21

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Solution

The fourth proportional to 74,010.80, 110,312.65 and 69,807.21 is: 104,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,010.80 : 110,312.65 = 69,807.21 : x
  2. Step 2: Convert to fraction form
    74,010.80/110,312.65 = 69,807.21/x
  3. Step 3: Cross multiply
    74,010.80x = 110,312.65 × 69,807.21
  4. Step 4: Simplify right side
    74,010.80x = 7,700,617,975.17
  5. Step 5: Solve for x
    x = 7,700,617,975.17/74,010.80
  6. Step 6: Final answer
    x = 104,047.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.