Home / 56,152.16-77,490.56-31,001.60

Finding the Fourth Proportional to 56,152.16, 77,490.56 and 31,001.60

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Solution

The fourth proportional to 56,152.16, 77,490.56 and 31,001.60 is: 42,782.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,152.16 : 77,490.56 = 31,001.60 : x
  2. Step 2: Convert to fraction form
    56,152.16/77,490.56 = 31,001.60/x
  3. Step 3: Cross multiply
    56,152.16x = 77,490.56 × 31,001.60
  4. Step 4: Simplify right side
    56,152.16x = 2,402,331,344.90
  5. Step 5: Solve for x
    x = 2,402,331,344.90/56,152.16
  6. Step 6: Final answer
    x = 42,782.53

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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.