Home / 74,420.04-102,681.90-42,155.40

Finding the Fourth Proportional to 74,420.04, 102,681.90 and 42,155.40

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Solution

The fourth proportional to 74,420.04, 102,681.90 and 42,155.40 is: 58,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.04 : 102,681.90 = 42,155.40 : x
  2. Step 2: Convert to fraction form
    74,420.04/102,681.90 = 42,155.40/x
  3. Step 3: Cross multiply
    74,420.04x = 102,681.90 × 42,155.40
  4. Step 4: Simplify right side
    74,420.04x = 4,328,596,567.26
  5. Step 5: Solve for x
    x = 4,328,596,567.26/74,420.04
  6. Step 6: Final answer
    x = 58,164.39

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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.