Home / 56,390.04-77,810.40-31,241.16

Finding the Fourth Proportional to 56,390.04, 77,810.40 and 31,241.16

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Solution

The fourth proportional to 56,390.04, 77,810.40 and 31,241.16 is: 43,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.04 : 77,810.40 = 31,241.16 : x
  2. Step 2: Convert to fraction form
    56,390.04/77,810.40 = 31,241.16/x
  3. Step 3: Cross multiply
    56,390.04x = 77,810.40 × 31,241.16
  4. Step 4: Simplify right side
    56,390.04x = 2,430,887,156.06
  5. Step 5: Solve for x
    x = 2,430,887,156.06/56,390.04
  6. Step 6: Final answer
    x = 43,108.45

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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.